Nos publications

@article{Ding2022,

title = {A writable aniline-functionalized polydiacetylene composite with obvious colorimetric change upon both heating and near infrared lights irradiation},

author = {Zhaofu Ding and Haibin Zhu and Xianjun Zhao and Shaohui Liu and Jacques Lalevee and Yangyang Xu},

doi = {10.1002/pat.5576},

year  = {2022},

date = {2022-03-01},

journal = {Polymers for Advanced Technologies},

volume = {33},

number = {3},

pages = {1021--1026},

abstract = {Due to the unique optical and chromatic properties toward various external stimuli, conjugated polydiacetylene (PDA) materials are attracting a great attention from scientists. And the fabrication of PDA embedded composites would further expand the application prospect. In this work, aniline substituted diacetylene derivative was embedded into wax matrix to form a writable composite. After UV induced 1,4-topochemical polymerization, the patterns generated from the PDA/wax composite showed clearly a blue-to-purple-to-red colorimetric change upon thermal stimulus. More interestingly, with the introduction of two representative near-infrared (NIR) dyes to the composite, the PDA also showed blue-to-red chromatic transition in response to distinctive NIR lights irradiation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Huang2022,

title = {Vertical channel metal-oxide clusters as sensitive NO2 sensor with modulated response at room temperature},

author = {Ting-Hsuan Huang and Pei-Yi Li and Jin-Bin Yang and Te-Yao Liu and Mei-Hsin Chen and Po-Tsun Liu and Hsin-Fei Meng and Chia-Jung Lu and Olivier Soppera and Ping-Hung Yeh and Hsiao-Wen Zan},

doi = {10.1016/j.snb.2021.131222},

year  = {2022},

date = {2022-03-01},

journal = {Sensors and Actuators B-chemical},

volume = {354},

pages = {131222},

abstract = {We proposed room-temperature-operated sensitive NO2 sensors by using a sol-gel thin-film device with a vertical channel structure. With the vertical channel, the low conductivity metal oxide clusters delivered large enough current. We hence noticed the unique sensing modulation characteristics, which were not observed in conventional lateral channel metal oxide devices, by simply adjusting the film composition. With a systematic study by tuning the composition and investigating the surface property, we proposed the level of hydroxyl group as the dominant factor to influence the sensitivity. Finally, the good-enough selectivity, repeatability, and shelf lifetime were successfully demonstrated.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Oliveira2022,

title = {Plasma polymerization in the design of new materials: looking through the lens of maleic anhydride plasma polymers},

author = {J. Carneiro de Oliveira and M. de Meireles Brioude and A. Airoudj and F. Bally-Le Gall and V. Roucoules},

doi = {10.1016/j.mtchem.2021.100646},

year  = {2022},

date = {2022-03-01},

journal = {Materials Today Chemistry},

volume = {23},

pages = {100646},

abstract = {Plasma polymerization is a well-established process for the deposition of thin polymeric films on various types of substrates. The potential of this technique for promoting changes of substrate's wettability constitutes one of the most basic and often reported applications. However, as novel technological demands emerge, and with it the range of available characterizations, plasma polymers are having their niche of applications and properties expanded. The properties of these materials are commonly tailored through the variation of polymer chemistry, postfunctionalization, or other post-treatment processes. That chemical versatility allows the use of plasma polymers in adhesives, water treatment, biomedicine, and many other fields. The creation of nanostructures via lithography or during the deposition process itself constitutes other dynamic fields for new plasma polymer materials. In the current review, the design of materials through plasma polymerization is addressed with the direction given by our expertise in maleic anhydride plasma polymers (MAPP). A non-exhaustive number of applications of plasma polymers is provided to non-specialists as an overview of the materials coming out from the field of this chemical-vapor deposition process. A complete analysis of the literature on maleic anhydride plasma polymers is also performed. (c) 2021 Elsevier Ltd. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gil2022,

title = {Thionolactone as a Resin Additive to Prepare (Bio)degradable 3D Objects via VAT Photopolymerization.},

author = {Noemie Gil and Constance Thomas and Rana Mhanna and Jessica Mauriello and Romain Maury and Benjamin Leuschel and Jean-Pierre Malval and Jean-Louis Clement and Didier Gigmes and Catherine Lefay and Olivier Soppera and Yohann Guillaneuf},

doi = {10.1002/anie.202117700},

year  = {2022},

date = {2022-02-01},

journal = {Angewandte Chemie (International ed. in English)},

pages = {e202117700--e202117700},

abstract = {Three-dimensional (3D) printing and especially VAT photopolymerization leads to cross-linked materials with high thermal, chemical, and mechanical stability. Nevertheless, these properties are incompatible with requirements of degradability and re/upcyclability. We show here that thionolactone and in particular dibenzo[c,e]-oxepane-5-thione (DOT) can be used as an additive (2 wt%) to acrylate-based resins to introduce weak bonds into the network via a radical ring-opening polymerization process. The low amount of additive makes it possible to modify the printability of the resin only slightly, keep its resolution intact, and maintain the mechanical properties of the 3D object. The resin with additive was used in UV microfabrication and two-photon stereolithography setups and commercial 3D printers. The fabricated objects were shown to degrade in basic solvent as well in a homemade compost. The rate of degradation is nonetheless dependent on the size of the object. This feature was used to prepare 3D objects with support structures that could be easily solubilized.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ElMessaoudi2022,

title = {Biosynthesis of SiO2 nanoparticles using extract of Nerium oleander leaves for the removal of tetracycline antibiotic},

author = {Noureddine El Messaoudi and Mohammed El Khomri and El-Houssaine Ablouh and Amal Bouich and Abdellah Lacherai and Amane Jada and Eder C. Lima and Farooq Sher},

doi = {10.1016/j.chemosphere.2021.132453},

year  = {2022},

date = {2022-01-01},

journal = {Chemosphere},

volume = {287},

pages = {132453},

abstract = {Tetracycline (TC) is one of the antibiotics that is found in wastewaters. TC is toxic, carcinogenic, and teratogenic. In this study, the tetracycline was removed from water by adsorption using dioxide silicon nanoparticles (SiO2 NPs) biosynthesized from the extract of Nerium oleander leaves. These nanoparticles were characterized using SEM-EDX, BET-BJH, FTIR-ATR, TEM, and XRD. The influences of various factors such as pH solution, SiO2 NPs dose, adsorption process time, initial TC concentration, and ionic strength on adsorption behaviour of TC onto SiO2 NPs were investigated. TC adsorption on SiO2 NPs could be well described in the pseudo-second-order kinetic model and followed the Langmuir isotherm model with a maximum adsorption capacity was 552.48 mg/g. At optimal conditions, the experimental adsorption results indicated that the SiO2 NPs adsorbed 98.62% of TC. The removal of TC using SiO2 NPs was 99.56% at conditions (SiO2 NPs dose = 0.25 g/L},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Nikitenko2022,

title = {Thiazolothiazole-containing conjugated polymers for indoor organic photovoltaic cells},

author = {Sergey L. Nikitenko and I Pavel Proshin and Ilya E. Kuznetsov and V Sergei Karpov and V Denis Anokhin and Dimitri A. Ivanov and Pavel A. Troshin and V Alexander Akkuratov},

doi = {10.1016/j.solener.2021.12.053},

year  = {2022},

date = {2022-01-01},

journal = {Solar Energy},

volume = {232},

pages = {12--17},

abstract = {Organic solar cells (OSCs) have attracted considerable attention in the last few decades due to their unique properties, including lightweight, flexibility, and manufacturing costs. Moreover, OSCs exhibit high performance under ambient light conditions revealing potential applications of these devices in low power electronics and Internet of Things (IoT) systems. In this work, we synthesized and characterized two novel conjugated polymers comprising thiazolothiazole, benzothiadiazole and thiophene alternating blocks with different thioalkyl substituents. Polymer P1 with 2-ethylhexylthio side chains provided power conversion efficiencies of ca. 5.0% on 4.5 cm(2) area OSCs fabricated using slot-die coating technique under ambient conditions. Furthermore, the assembled P1-based module delivered the power output of 45.5 mu W under 400 lx indoor illumination sufficient to power wireless air temperature sensor, thus demonstrating the potential of our devices for practical indoor applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Vashahi2022,

title = {Injectable bottlebrush hydrogels with tissue-mimetic mechanical properties},

author = {Foad Vashahi and Michael R. Martinez and Erfan Dashtimoghadam and Farahnaz Fahimipour and Andrew N. Keith and Egor A. Bersenev and Dimitri A. Ivanov and Ekaterina B. Zhulina and Pavel Popryadukhin and Krzysztof Matyjaszewski and Mohammad Vatankhah-Varnosfaderani and Sergei S. Sheiko},

doi = {10.1126/sciadv.abm2469},

year  = {2022},

date = {2022-01-01},

journal = {Science Advances},

volume = {8},

number = {3},

pages = {eabm2469},

abstract = {Injectable hydrogels are desired in many biomedical applications due to their minimally invasive deployment to the body and their ability to introduce drugs. However, current injectables suffer from mechanical mismatch with tissue, fragility, water expulsion, and high viscosity. To address these issues, we design brush-like macromolecules that concurrently provide softness, firmness, strength, fluidity, and swellability. The synthesized linear-bottlebrush-linear (LBL) copolymers facilitate improved injectability as the compact conformation of bottlebrush blocks results in low solution viscosity, while the thermoresponsive linear blocks permit prompt gelation at 37 degrees C. The resulting hydrogels mimic the deformation response of supersoft tissues such as adipose and brain while withstanding deformations of 700% and precluding water expulsion upon gelation. Given their low cytotoxicity and mild inflammation in vivo, the developed materials will have vital implications for reconstructive surgery, tissue engineering, and drug delivery applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Tkachenko2022,

title = {Kinetically stable sub-50 nm fluorescent block copolymer nanoparticles via photomediated RAFT dispersion polymerization for cellular imaging},

author = {Vitalii Tkachenko and Philippe Kunemann and Jean Pierre Malval and Tatiana Petithory and Laurent Pieuchot and Loic Vidal and Abraham Chemtob},

doi = {10.1039/d1nr04934h},

year  = {2022},

date = {2022-01-01},

journal = {Nanoscale},

volume = {14},

number = {2},

pages = {534--545},

abstract = {Self-assembled block copolymer nanoparticles (NPs) have emerged as major potential nanoscale vehicles for fluorescence bioimaging. The preparation of NPs with high yields possessing high kinetic stability to prevent the leakage of fluorophore molecules is crucial to their practical implementation. Here, we report a photomediated RAFT polymerization-induced self-assembly (PISA) yielding uniform and nanosized poly((oligo(ethylene glycol) acrylate)-block-poly(benzyl acrylate) particles (POEGA-b-PBzA) with a concentration of 22 wt%, over 20 times more than with micellization and nanoprecipitation. The spherical diblock copolymer nanoparticles have an average size of 10-50 nm controllable through the degree of polymerization of the stabilizing POEGA block. Subsequent dialysis against water and swelling with Nile red solution led to highly stable fluorescent NPs able to withstand the changes in concentration, ionic strength, pH or temperature. A PBzA/water interfacial tension of 48.6 mN m(-1) hinders the exchange between copolymer chains, resulting in the trapping of NPs in a "kinetically frozen" state responsible for high stability. A spectroscopic study combining fluorescence and UV-vis absorption agrees with a preferential distribution of fluorophores in the outer POEGEA shell despite its hydrophobic nature. Nile red-doped POEGA-b-PBzA micelles without initiator residues and unimers but with high structural stability turn out to be noncytotoxic, and can be used for the optical imaging of cells. Real-time confocal fluorescence microscopy shows a fast cellular uptake using C2C12 cell lines in minutes, and a preferential localization in the perinuclear region, in particular in the vesicles.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Mougin2022,

title = {Surface Color on Demand: Chameleon Effect},

author = {Karine Mougin and Hendrik Hoelscher and Arnaud Spangenberg},

doi = {10.1007/s11837-021-05138-3},

year  = {2022},

date = {2022-01-01},

journal = {Jom},

abstract = {The need for functional materials has triggered significant endeavors in the design and assembly of functionalized interfaces with specific optical characteristics. In the world of color, structural and plasmonic colors represent a smart alternative to materials colored by pigments or dyes. In particular, plasmonic color in polymer materials allows the mechanochromism phenomenon. Hence, this work has focused on the development of a hybrid material able to change its color at will. To achieve this, nature has been the source of inspiration, especially the "chameleon effect". Like the chameleon, the hybrid polymer material filled with metallic nanoparticles was able to change color by varying the distance between nanoparticles under constraint. This effect could be permanent and reversible by varying the matrix. As the colors of metallic nanoparticles do not bleach, this concept also avoids any fading or vanishing color effects. This technology opens new routes in colored materials and the mechanochromism phenomenon.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Teyssandier2022,

title = {Polydiacetylene photocomposite material obtained by orthogonal chemistry: a detailed study at the mesoscopic scale},

author = {Joan Teyssandier and Marc Fouchier and Jacques Lalevee and Laurent Simon},

doi = {10.1039/d1ma01099a},

year  = {2022},

date = {2022-01-01},

journal = {Materials Advances},

abstract = {A recent paper reported the spatially controlled photopolymerization and subsequent 3D printing of polydiacetylene (PDA) by orthogonal chemistry using dual-wavelength polymerization. Diacetylene monomers were dispersed in an acrylate resin to form a photocomposite in a two-step process: a first irradiation photopolymerizes the acrylate freezing the diacetylene monomers which were polymerized in a second step at a different wavelength. In the present article, for a better understanding of the organization of the generated functional composites, this process is studied at the mesoscopic scale by performing optical and scanning electron microscopy combined with correlative Raman, AFM and cathodoluminescence measurements. We have diluted the PCDA/acrylate blend in dichloromethane (CH2Cl2) and performed drop casting deposition on graphite. We discovered that the acrylate-diacetylene mixture promotes dramatically the formation of large PDA crystals. The confinement of PDA crystals inside the polyacrylate hindered their thermochromic blue-to-red transition, as revealed by correlative Raman microscopy. Cathodoluminescence measurements on the photocomposite have also shown that the light emission properties of PDAs are strongly modified by the induced confinement.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Kirschner2022,

title = {Silyl Glyoximides: Toward a New Class of Visible Light Photoinitiators},

author = {Julie Kirschner and Alexandre Baralle and Julien Paillard and Bernadette Graff and Jean-Michel Becht and Joachim E. Klee and Jacques Lalevee},

doi = {10.1002/macp.202100500},

year  = {2022},

date = {2022-01-01},

journal = {Macromolecular Chemistry and Physics},

pages = {2100500},

abstract = {Many academic and industrial works are carried out for the search of new classes of visible light photoinitiators. In the last decade, new Type I photoinitiator generating silyl, germyl, or stannyl radicals is elegantly reported; the chemical mechanisms being often associated with the cleavage of the C(O)-Si, C(O)-Ge, or C(O)-Sn bonds. In this context, silyl glyoxylates are also reported as dual Type I and Type II photoinitiators. Silyl glyoximides are proposed here as new near-UV and blue light sensitive photoinitiators. The synthesis of such compounds as well as their light absorption properties is discussed. Their photochemical properties are studied through steady state photolysis experiments and molecular modeling data (i.e., through the calculations of the frontier orbitals, C-C bond dissociation energies and triplet state energy levels). To finish, their photoinitiating ability upon near-UV or blue light emitting diode light is examined in a benchmark methacrylate monomer blend (BisGMA/TEGDMA). Markedly, a Type I photoinitiator behavior is highlighted but better initiating properties are found in multicomponent systems in combination with iodonium salt and amine.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Frikha2022,

title = {Potential Valorization of Waste Tires as Activated Carbon-Based Adsorbent for Organic Contaminants Removal.},

author = {Kawthar Frikha and Lionel Limousy and Joan Pons Claret and Cyril Vaulot and Karin Florencio Perez and Beatriz Corzo Garcia and Simona Bennici},

doi = {10.3390/ma15031099},

year  = {2022},

date = {2022-01-01},

journal = {Materials (Basel, Switzerland)},

volume = {15},

number = {3},

abstract = {The present study investigates the potential of waste tires to produce a valuable adsorbent material for application in wastewater treatment. In the first stage, the pyrolysis of ground rubber tire was explored using non-isothermal and isothermal thermogravimetric analysis experiments. The effect of operating parameters, such as heating rate and pyrolysis temperature, on the pyrolysis product yields was considered. The slow pyrolysis of ground rubber tire was taken up in a large-scale fixed-bed reactor for enhanced char recovery. Four pyrolysis temperatures were selected by thermogravimetric data. The product yields were strongly influenced by the pyrolysis temperature; at higher temperatures, the formation of more gases and liquid was favored, while at lower pyrolysis temperatures, more char (solid fraction) was formed. The produced chars were characterized in terms of mineral composition, textural properties, proximate analysis, and structural properties to identify the relationships between the pyrolysis temperature and the char properties. In a second step, a series of activated chars were prepared, starting from the pyrolytic chars via chemical and/or physical activation methods. Then, the activated chars were characterized and tested as adsorbents for atrazine and ibuprofen. Adsorption experiments in aqueous media were carried out in a small-scale batch reactor system. Chemical activation seems appropriate to significantly reduce the inorganic compounds initially present in ground rubber tire and contribute to an important increase in the surface area and porosity of the chars. Adsorption experiments indicated that chemically activated chars exhibit high aqueous adsorption capacity for atrazine.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ElFakir2022,

title = {Conjugated polymers templated carbonization to design N, S co-doped finely tunable carbon for enhanced synergistic catalysis},

author = {Abdellah Ait El Fakir and Zakaria Anfar and Mohamed Enneiymy and Amane Jada and Noureddine El Alem},

doi = {10.1016/j.apcatb.2021.120732},

year  = {2022},

date = {2022-01-01},

journal = {Applied Catalysis B-environmental},

volume = {300},

pages = {120732},

abstract = {Efficient generation of O-1(2) nonradical species from persulfate (PS) is demonstrated during heterogeneous catalysis systems based on the use of new Nitrogen and Sulfur doped carbons (NC, SC and NSC), as prepared by direct carbonization of polyaniline/polythiophene conjugated polymers at 800 degrees C. Complete organic molecules degradations were achieved with high mineralization rate (similar to 70%) for all systems, over a wide pH range (2.6-9.5) in the presence of PS. Interestingly, the synergistic effect occurring between the N-Graphitic and the S-Thiophenic sites, modulates the surface electron density toward basic carbon structure (N similar to 4.76 at% and S similar to 3.87 at%, with S-BET-251 m(2) g(-1)), leads to increases of the adsorption abilities and the reaction rate constant (from 0.076 to 0.338 min(-1)), and boosts the carbocatalyst' stability. Our discovery sheds new light on new systems promoting the Fenton-like oxidation process by O-1(2) nonradical species, it may be a long-lasting sustainable environmentally strategy for water remediation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gashi2022,

title = {Tuning the C/N Ratio of C-Rich Graphitic Carbon Nitride (g-C3N4) Materials by the Melamine/Carboxylic Acid Adduct Route},

author = {Arianit Gashi and Julien Parmentier and Philippe Fioux and Roman Marsalek},

doi = {10.1002/chem.202103605},

year  = {2022},

date = {2022-01-01},

journal = {Chemistry-a European Journal},

pages = {e202103605},

abstract = {C-rich graphitic carbonitride materials (CNx) with a large range of compositions have been prepared thanks to the self-assembly, in different ratios, of melamine (M) and a panel of polycarboxylic acids (A) such as oxalic, tartaric and citric acid. The thermal conversion of the formed adducts (MA(y)), led to CNx phases, with x ranging from 0.66 to 1.4 (x=1.33 for g-C3N4 for comparison). The properties of these materials were examined by different techniques (XRD, Raman spectroscopy, TEM, TGA, XPS and DRIFT). It appears that the increase in the C content is associated with the disappearance of the long-range order of heptazine units and an increase in the sub-nanometer carbon-rich cluster size within the graphitic g-C3N4 structure. This trend is followed by a significant increase in the interlayer spacing and a lower proportion of N=C-N bonds compared to C=C bonds. The thermal stability under an inert atmosphere of these phases and their UV-Visible absorbance properties were also investigated.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Qatarneh2021,

title = {River driftwood pretreated via hydrothermal carbonization as a sustainable source of hard carbon for Na-ion battery anodes},

author = {Abdullah F. Qatarneh and Capucine Dupont and Julie Michel and Loic Simonin and Adrian Beda and Camelia Matei Ghimbeu and Virginia Ruiz-Villanueva and Denilson Silva and Herve Piegay and Mario J. Franca},

doi = {10.1016/j.jece.2021.106604},

year  = {2021},

date = {2021-12-01},

journal = {Journal of Environmental Chemical Engineering},

volume = {9},

number = {6},

pages = {106604},

abstract = {Producing hard carbon from lignocellulosic biomass has been the focus of recent studies as a promising source of anode material for Na-ion batteries. Woody biomass is a potential source, but it is already well valorized. Consequently, river driftwood can be an excellent alternative, especially since it is a disturbing waste for dam regulators. It can jeopardize dam safety, damage intake works, and sink in reservoirs, lowering water quality and decreasing reservoir volume. We examine the potential of river driftwood as a source of hard carbon for Na-ion batteries. Hydrothermal carbonization (HTC) was carried out at temperatures between 180 and 220 degrees C as the first step to produce hydrochar followed by an upgrading pyrolysis step at 1400 degrees C under an inert atmosphere to obtain hard carbon. We investigated the effect of HTC operational conditions and driftwood biomass (genera) on hydrochar and hard carbon properties, as well as the latter's impact on Na-ion batteries. The produced carbon electrodes delivered a reversible capacity of 270-300 mAh.g(-1) for the first cycle and showed high coulombic efficiencies of 77-83%. We also observed promising cyclability of a maximum 2% loss after 100 cycles. Moreover, results suggest that obtained hard carbon can compete with commercial materials and is capable to supply large battery factories with anode material.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Haounati2021ab,

title = {Design of direct Z-scheme superb magnetic nanocomposite photocatalyst Fe3O4/Ag3PO4@Sep for hazardous dye degradation},

author = {R. Haounati and A. El Guerdaoui and H. Ouachtak and R. El Haouti and A. Bouddouch and N. Hafid and B. Bakiz and D. M. F. Santos and M. Labd Taha and A. Jada and A. Ait Addi},

doi = {10.1016/j.seppur.2021.119399},

issn = {1383-5866},

year  = {2021},

date = {2021-12-01},

journal = {SEPARATION AND PURIFICATION TECHNOLOGY},

volume = {277},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Haounati2021a,

title = {Design of direct Z-scheme superb magnetic nanocomposite photocatalyst Fe3O4/Ag3PO4@Sep for hazardous dye degradation},

author = {R. Haounati and A. El Guerdaoui and H. Ouachtak and R. El Haouti and A. Bouddouch and N. Hafid and B. Bakiz and D. M. F. Santos and M. Labd Taha and A. Jada and A. Ait Addi},

doi = {10.1016/j.seppur.2021.119399},

year  = {2021},

date = {2021-12-01},

journal = {Separation and Purification Technology},

volume = {277},

pages = {119399},

abstract = {Z-scheme Fe-3 O-4/Ag-3 PO4 @Sep magnetic nanocomposite photocatalyst was prepared via an eco-friendly coprecipitation approach. Various analytical methods were used to assess the structure, the morphology, and the optical absorption properties of the photocatalyst. The sepiolite as support of Ag-3 PO4 and Fe-3 O-4 nanoparticles, prevented the aggregation and the photo-corrosion of the bare Ag-3 PO4, and enhanced the photocatalytic stability and activity of the photocatalyst by a synergetic effect. Further, the band gap energy of the nanocomposite photocatalyst, as determined from the density functional theory calculations, was reduced, from 2.59 eV for Ag-3 PO4 (1 1 0), and from 2.98 eV for Fe-3 O-4 (2 2 0), to about 2.37 eV for Fe-3 O-4/Ag-3 PO4 @Sep. The obtained dye degradation rate value of 0.480 min(-1), was 69 times superior to pure Fe-3 O-4, 5 times higher than the bare Ag-3 PO4, and 3 times higher than Ag-3 PO4 @Sep. More importantly, Fe-3 O-4/Ag-3 PO4 @Sep shows continuous photocatalytic activity, even after three cycles of reuse.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Kumar2021,

title = {Assessment of energy potential of date palm residues in Khairpur district, Pakistan},

author = {Sanjay Kumar and Khanji Harijan and Mejdi Jeguirim and Mujeeb Iqbal Soomro and Jonathan Daniel Nixon and Mohammad Aslam Uqaili},

doi = {10.1080/17597269.2019.1610599},

year  = {2021},

date = {2021-11-01},

journal = {Biofuels-uk},

volume = {12},

number = {10},

pages = {1267--1274},

abstract = {This paper provides assessment of the energy potential of date palm residues, including leaflets, rachis, fruit prunings, and trunks, in Khairpur district, Sindh, Pakistan. The 'yield formula method' has been used to estimate the residue generation and energy potential. The potential of biomass date palm residues generated in Khairpur district is estimated to be 155,000 tonnes per annum, with 51% and 44% share of rachis and leaflets, respectively. The total potential of date palm residues from leaflets, rachis, fruit prunings, and trunks available for energy production is found to be 87,000 tonnes per annum, which is about 56% of the total generated residues. The experimentally measured heating values of the date palm residues range from 12.1 to 14.4MJ/kg, and their cumulative energy potential is found to be about 1.16 PJ, with a 68% and 26% share for date palm rachis and leaflets, respectively. The regression model outlines a linear relationship between annual date production and corresponding total residue generation, which increase on average by 8.77% and 6.97%, respectively. However, the residues available for energy production annually increase by 3.68% and will reach approximately 55% in the next 15 years. It could potentially influence the energy production and utilization in the region.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Belqat2021,

title = {Tuning nanomechanical properties of microstructures made by 3D direct laser writing},

author = {Mehdi Belqat and Xingyu Wu and Laura Piedad Chia Gomez and Jean-Pierre Malval and Sebastien Dominici and Benjamin Leuschel and Arnaud Spangenberg and Karine Mougin},

doi = {10.1016/j.addma.2021.102232},

year  = {2021},

date = {2021-11-01},

journal = {Additive Manufacturing},

volume = {47},

pages = {102232},

abstract = {3D Direct laser writing (3D DLW) based on two photon polymerization represents a powerful technique for the additive manufacturing of 3D micro- and nano-structures, which have a number of promising applications in areas including biology and cell cultures up to soft robotic. New applications often entail the contact and movement of nanoscale areas, therefore understanding of the mechanical properties involved in such systems is necessary for creating reliable micro and nanoscale applications. Notably, knowledge about nanomechanics of 3D printed structures and its dependence on its geometry and contact size remains essential. This study focuses on the investigation of the Young's modulus of 3D printed microstructures by Atomic Force Microscopy. Using the PeakForce QNM AFM mode, it was possible to determine the influence of the laser power and the monomer and their mixture on the micromechanical properties, in particular the Young's modulus. The fabricated structures are 2D structures, consisting of successive lines forming a square. Three different resins have been used based on poly(ethyleneglycol)diacrylate (PEGDA), trimethylolpropane triacrylate (TMPTA) and pentaerythritol triacrylate (PETA). The results obtained show that the increase in laser power increases the Young's modulus of these raw materials, since it induces a stronger crosslinking density. Mixtures of resins have also been formulated inducing a Young's modulus structure increase when increasing the amount of PETA. By combining these two approaches, tuning of the nanomechanical properties of the final microstructures on an unprecedented range covering 3 orders of magnitude, from MPa up to GPa have been successfully achieved. This major result paves the way to in-depth reflection on future works in nanorobotics or biomedical devices, where complex mechanical behavior are highly desired.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Politakos2021,

title = {Synthesis, Characterization and Structure Properties of Biobased Hybrid Copolymers Consisting of Polydiene and Polypeptide Segments},

author = {Nikolaos Politakos and Ioannis Moutsios and Gkreti-Maria Manesi and Dimitrios Moschovas and Ainur F. Abukaev and Evgeniia A. Nikitina and Galder Kortaberria and Dimitri A. Ivanov and Apostolos Avgeropoulos},

doi = {10.3390/polym13213818},

year  = {2021},

date = {2021-11-01},

journal = {Polymers},

volume = {13},

number = {21},

pages = {3818},

abstract = {Novel hybrid materials of the PB-b-P(o-Bn-L-Tyr) and PI-b-P(o-Bn-L-Tyr) type (where PB: 1,4/1,2-poly(butadiene), PI: 3,4/1,2/1,4-poly(isoprene) and P(o-Bn-L-Tyr): poly(ortho-benzyl-L-tyrosine)) were synthesized through anionic and ring-opening polymerization under high-vacuum techniques. All final materials were molecularly characterized through infrared spectroscopy (IR) and proton and carbon nuclear magnetic resonance (H-1-NMR, C-13-NMR) in order to confirm the successful synthesis and the polydiene microstructure content. The stereochemical behavior of secondary structures (alpha-helices and beta-sheets) of the polypeptide segments combined with the different polydiene microstructures was also studied. The influence of the alpha-helices and beta-sheets, as well as the polydiene chain conformations on the thermal properties (glass transition temperatures, thermal stability, alpha- and beta-relaxation) of the present biobased hybrid copolymers, was investigated through differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and dielectric spectroscopy (DS). The obtained morphologies in thin films for all the synthesized materials via atomic force microscopy (AFM) indicated the formation of polypeptide fibrils in the polydiene matrix.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ma2021b,

title = {Imidazole based dual photo/thermal initiators for highly efficient radical polymerization under air with a metal-free approach},

author = {Qiang Ma and Shaohui Liu and Marie Le Dot and Haifaa Mokbel and Yijun Zhang and Bernadette Graff and Jacques Lalevee},

doi = {10.1039/d1py01079d},

year  = {2021},

date = {2021-11-01},

journal = {Polymer Chemistry},

volume = {12},

number = {44},

pages = {6386--6391},

abstract = {By virtue of remarkable spatial resolution, a metal-free visible LED photopolymerization process, initiated by imidazole based charge transfer complexes under mild conditions (room temperature, without an inert atmosphere, monomer purification or stabilizer removal), is reported. For two multifunctional acrylate monomers, an outstanding photoinitiating ability was proved (up to 80% of acrylate function conversion) by combining imidazoles (electron donors) and iodonium salts (electron acceptors) under 405 nm LED irradiation. 3D printing experiments using a low intensity 3D printer are reported to demonstrate the performance of this CTC approach. Meanwhile, the thermal polymerization features a relatively low thermal initiating temperature, making the process more pursuable and also easier to achieve for thick samples in practice and/or polymerization in shadow areas (where light does not penetrate). As a new dual photo/thermal initiator, it showcases tremendous potential for 3D printing with high resolution and high-tech composites. This dual initiating system represents a new type of thermal initiator toward a safer way (peroxide-free) and provides a new pathway for surface repairing or modifying of direct laser writing in a low toxicity, facile manner.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Jing2021,

title = {Efficient 3D charge transport in planar triazatruxene-based dumbbell-shaped molecules forming a bridged columnar phase},

author = {Jiang Jing and Benoit Heinrich and Alexis Prel and Emilie Steveler and Tianyan Han and Ibrahim Bulut and Stephane Mery and Yann Leroy and Nicolas Leclerc and Patrick Leveque and Martin Rosenthal and Dimitri A. Ivanov and Thomas Heiser},

doi = {10.1039/d1ta06300f},

year  = {2021},

date = {2021-11-01},

journal = {Journal of Materials Chemistry A},

volume = {9},

number = {43},

pages = {24315--24324},

abstract = {Planar conjugated molecular backbones are essential for achieving high charge carrier mobilities along molecular pi-stacking directions but are often concomitant with poor charge transport in other directions. This is particularly the case for molecules that are functionalized with alkyl chains, which ensure good processability in solution but introduce detrimental insulating regions. Here, we show that soluble planar dumbbell-shaped molecules, composed of two triazatruxene (TAT) units covalently bonded to a central thiophene-thienopyrroledione-thiophene (TPD) segment self-assemble into an original structure that allows efficient 3D charge transport. Grazing-incidence wide-angle X-ray scattering investigations as well as micro-focus X-ray experiments on single crystals reveal that the TAT derivatives form a columnar-nematic mesophase in which columns of stacked TAT units spaced by molten chains are interconnected by TPD bridges. Upon annealing, a crystalline phase, stemming from the parent hexagonal mesophase, is obtained with the molecular stacking direction lying in-plane. Transport measurements in the crystalline phase reveal an unusually high out-of-plane hole mobility of 0.17 cm(2) V-1 s(-1) and a lower limit for the in-plane mobility of 0.05 cm(2) V-1 s(-1). The results suggest that the TPD segments bridging neighboring stacks of TAT columns are responsible for efficient hole transport in 3D.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Dedzo2021b,

title = {Functionalization of synthetic saponite: Identification of grafting sites and application for anions sequestration},

author = {Gustave Kenne Dedzo and Severinne Rigolet and Ludovic Josien and Emmanuel Ngameni and Liva Dzene},

doi = {10.1016/j.apsusc.2021.150911},

issn = {0169-4332},

year  = {2021},

date = {2021-11-01},

journal = {APPLIED SURFACE SCIENCE},

volume = {567},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Kasapis2021,

title = {Self-assembly behavior of ultra-high molecular weight in-situ anionically synthesized polymer matrix composite materials ``grafted from'' single- or multi-wall CNTs},

author = {Evangelos Kasapis and Konstantina Tsitoni and Gkreti-Maria Manesi and Ioannis Moutsios and Dimitrios Moschovas and Dmitry V. Vashurkin and Denis S. Kotlyarskiy and Dimitri A. Ivanov and Apostolos Avgeropoulos},

doi = {10.1016/j.polymer.2021.124243},

issn = {0032-3861},

year  = {2021},

date = {2021-11-01},

journal = {POLYMER},

volume = {235},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ng2021ab,

title = {Offretite zeolite templated by amphiphile and its catalytic performance in microwave-assisted Knoevenagel condensation of benzaldehyde and ethyl cyanoacetate},

author = {Eng-Poh Ng and Nur Hidayahni Ahmad and Tau Chuan Ling and Fitri Khoerunnisa and T. Jean Daou},

doi = {10.1016/j.matchemphys.2021.125001},

issn = {0254-0584},

year  = {2021},

date = {2021-11-01},

journal = {MATERIALS CHEMISTRY AND PHYSICS},

volume = {272},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Matangouo2021b,

title = {Encapsulation of butylimidazole in smectite and slow release for enhanced copper corrosion inhibition},

author = {Baudelaire Matangouo and Gustave Kenne Dedzo and Liva Dzene and Charles Peguy Nanseu-Njiki and Emmanuel Ngameni},

doi = {10.1016/j.clay.2021.106266},

issn = {0169-1317},

year  = {2021},

date = {2021-11-01},

journal = {APPLIED CLAY SCIENCE},

volume = {213},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ho2021b,

title = {Determination of methane, ethane and propane on activated carbons by experimental pressure swing adsorption method},

author = {Bich Ngoc Ho and David Pino-Perez and Camelia Matei Ghimbeu and Joseph Diaz and Deneb Peredo-Mancilla and Cecile Hort and David Bessieres},

doi = {10.1016/j.jngse.2021.104124},

issn = {1875-5100},

year  = {2021},

date = {2021-11-01},

journal = {JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING},

volume = {95},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ng2021a,

title = {Offretite zeolite templated by amphiphile and its catalytic performance in microwave-assisted Knoevenagel condensation of benzaldehyde and ethyl cyanoacetate},

author = {Eng-Poh Ng and Nur Hidayahni Ahmad and Tau Chuan Ling and Fitri Khoerunnisa and T. Jean Daou},

doi = {10.1016/j.matchemphys.2021.125001},

year  = {2021},

date = {2021-11-01},

journal = {Materials Chemistry and Physics},

volume = {272},

pages = {125001},

abstract = {A detailed investigation on the crystallization of offretite (OFF) zeolite templated by non-toxic cetyltrimethylammonium bromide (CTABr) is reported. Various hydrothermal synthesis conditions are prepared by systematically adjusting the synthesis variables, namely crystallization time, heating temperature and amount of reactants (SiO2, Al2O3, K2O, M2O (M = Na+, Cs+), CTABr and H2O) to investigate their effects on the crystal growth of OFF zeolite. It is shown that each variable has its profound influences on the crystallization process, which further affect the properties of final zeolite products (e.g. phase purity, morphology, crystal size). Unlike classical synthesis pathway using tetramethylammonium (TMA+) as organic template, the CTABr-templating approach successfully produces large OFF single crystals (framework Si/Al ratio = 4.11) with hexagonal prism shape (ca. 9.4 x 1.8 mu m2) and smooth surface. Besides that, the OFF zeolite (81.9% conversion) also shows comparable or even higher catalytic performance than other zeolites reported in this work and other works in microwave assisted-Knoevenagel reaction of benzaldehyde and ethyl cyanoacetate, offering a sustainable and facile pathway for preparing zeolitic materials for advanced applications.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Matangouo2021,

title = {Encapsulation of butylimidazole in smectite and slow release for enhanced copper corrosion inhibition},

author = {Baudelaire Matangouo and Gustave Kenne Dedzo and Liva Dzene and Charles Peguy Nanseu-Njiki and Emmanuel Ngameni},

doi = {10.1016/j.clay.2021.106266},

year  = {2021},

date = {2021-11-01},

journal = {Applied Clay Science},

volume = {213},

pages = {106266},

abstract = {Butylimidazole (Bim) a well-known copper corrosion inhibitor was encapsulated in its cationic form, in a smectite type clay mineral (Sabga clay mineral (Sg)) by cation exchange of sodium cations located in the interlayer space of the layered clay mineral. Physicochemical characterization (XRD, FT-IR and TGA) revealed that Bim was intercalated (0.48 mmol per gram of hybrid material) in its cationic form. The intercalation was followed by an increase of the layer to layer distance from 11.4 angstrom to 13.9 angstrom. The composite material (Sg-Bim) was then applied as copper corrosion inhibitor in concentrated sodium sulphate solution (0.1 M) and experiments monitored electrochemically. For a given concentration of Sg-Bim, the corrosion potential increased as a function of time. The corrosion inhibition percentages obtained both by corrosion current densities (up to 80.7%) and charge transfer resistance (up to 87.0%) were found to increase with the release time. This confirmed that the clay mineral Sg effectively served as a nanocontainer for the encapsulation of Bim. Moreover, the release of Bim occurred gradually when the organoclay was immersed in concentrated saline solution. Investigations on the effect of temperature on the process confirmed that the action of released Bim against copper corrosion consisted in improving the stability of the Cu2O protecting layer, according to a physisorption mechanism.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ho2021,

title = {Determination of methane, ethane and propane on activated carbons by experimental pressure swing adsorption method},

author = {Bich Ngoc Ho and David Pino-Perez and Camelia Matei Ghimbeu and Joseph Diaz and Deneb Peredo-Mancilla and Cecile Hort and David Bessieres},

doi = {10.1016/j.jngse.2021.104124},

year  = {2021},

date = {2021-11-01},

journal = {Journal of Natural Gas Science and Engineering},

volume = {95},

pages = {104124},

abstract = {This study focuses on isotherms adsorption of natural gas components i.e. methane, ethane, and propane on five commercial activated carbons to determine their different behaviors towards each compound. These five commercial activated carbons have different textures that are supposed to affect their adsorption capacity. The experiments were carried out at 303 K within a pressure range of 0-3 MPa using a homemade manometric adsorption device. A comprehensive process was also detailed with a step-by-step calculation. The obtained data were then fitted into the modified Langmuir model in order to justify the mono-layer coverage. Hence, the relationship between the Langmuir adsorption capacities and different textural properties were plotted, and only the specific area showed its direct influence. The outcome also turned out that the most promising activated carbon is the one that possesses not only the highest specific surface area but also has an adequate balance between the microporous and mesoporous volumes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Dedzo2021,

title = {Functionalization of synthetic saponite: Identification of grafting sites and application for anions sequestration},

author = {Gustave Kenne Dedzo and Severinne Rigolet and Ludovic Josien and Emmanuel Ngameni and Liva Dzene},

doi = {10.1016/j.apsusc.2021.150911},

year  = {2021},

date = {2021-11-01},

journal = {Applied Surface Science},

volume = {567},

pages = {150911},

abstract = {The present work reports the study of the mechanism of grafting of an alkoxysilane on the surface of a synthetic saponite. XRD and SEM/EDX characterizations confirmed the effective synthesis of the clay mineral with structural formula Na-INT(0).(50)TET[Si3.50Al0.50](OCT)[Mg-3]O-10(OH)(2). The functionalization of this material in its pristine or acid pre-treated form with a cationic silane (tetradecyldimethyl(3-trimethoxysilylpropyl)ammonium chloride) yielded a nanohybrid organoclay with interesting structural and chemical properties highlighted by Si-29 solid state NMR, XRD, FTIR, TGA and electrochemical characterizations. The monodentate and bidentate grafting of the alkoxysilane was observed regardless the starting material was pristine or acid pre-treated saponite. The more significant layer-to-layer distance increase observed after the functionalization of acid pretreated saponite indicated some interlayer intercalation/grafting of the alkoxysilane. Electrochemical characterization (cyclic voltammetry and electrochemical impedance spectroscopy) showed that the modified clay mineral exhibited anionic exchange property due to the presence of grafted cationic alkoxysilane. This anionic exchange capacity was confirmed when successfully applied for the adsorption of the anionic dye Congo Red. In all cases, the acid pre-treatment tended to improve the anion exchange property of the organoclay.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Cennamo2021,

title = {Flexible and Ultrathin Metal-Oxide Films for Multiresonance-Based Sensors in Plastic Optical Fibers},

author = {N. Cennamo and F. Arcadio and L. Noel and L. Zeni and O. Soppera},

doi = {10.1021/acsanm.1c02345},

year  = {2021},

date = {2021-10-01},

journal = {Acs Applied Nano Materials},

volume = {4},

number = {10},

pages = {10902--10910},

abstract = {We have exploited a laser-based integration process of ultrathin metal-oxide (MO) films to improve the plasmonic effect in sensors based on D-shaped plastic optical fibers (POFs). More specifically, using ultrathin MO films, the performances of the surface plasmon resonance (SPR) phenomenon improve and a lossy mode resonance (LMR) can occur. Although the role of this kind of materials has been already presented, when they are deposited as overlayer (upside the thin metal film), we have used a different approach by depositing MOs, especially zirconium oxide (ZrO2) and titanium oxide (TiO2), as flexible intermediate layers between the exposed core of POFs and the gold film. The MO layer is prepared from sol-gel solution, and deep-UV laser curing allows us to densify the thin film and tune the refractive index, with a room-temperature process fully compatible with the flexible polymer substrates. In a preliminary step, we have carried out numerical results, based on transfer matrix formalism, to predict the SPR response. Subsequently, we have experimentally characterized the developed sensor configurations. Numerical and experimental results have shown above all an enhancement of the sensor performances, in terms of SPR sensitivity, with respect to a reference sensor based on a polymer instead of MOs. Moreover, in some proposed sensor configurations, together with the SPR phenomenon, an LMR phenomenon was observed. It occurred in a different wavelength range, for a typical refractive index range present when considering receptors for biochemical sensing applications. Therefore, both resonances (SPR and LMR) could be used in several application fields.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{ElHaber2021,

title = {Near-Infrared Laser Direct Writing of Conductive Patterns on the Surface of Carbon Nanotube Polymer Nanocomposites.},

author = {Gerges El Haber and Laurent Noel and Ching-Fu Lin and Simon Gree and Loic Vidal and Hsiao-Wen Zan and Nelly Hobeika and Olivier Lhost and Yves Trolez and Olivier Soppera},

doi = {10.1021/acsami.1c12757},

year  = {2021},

date = {2021-10-01},

journal = {ACS applied materials & interfaces},

volume = {13},

number = {41},

pages = {49279--49287},

abstract = {Near-infrared (NIR) laser annealing is used to write conductive patterns on the surface of polypropylene/multi-walled carbon nanotube nanocomposite (PP/MWCNT) plates. Before irradiation, the surface of the nanocomposite is not conductive due to the partial alignment of the MWCNT, which occurs during injection molding. We observe a significant decrease in the surface sheet resistance using NIR laser irradiation, which we explain by a randomization of the orientation of MWCNTs in the PP matrix melt by NIR laser irradiation. After only 5 s of irradiation, the sheet resistance of PP/MWCNTs, annealed with a laser at a power density of 7 W/cm2, decreases by more than 4 decades from 100 MOmega/sq to 1 kOmega/sq. Polarized Raman, TEM, and SEM are used to investigate the changes in the sheet resistance and confirm the physico-chemical processes involved. This allows direct writing of conductive patterns using a NIR laser on the surface of nanocomposite polymer substrates, with the advantages of a fast, easy, and low-energy consumption process.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Gerard2021b,

title = {Photostability of L-tryptophan in aqueous solution: Effect of atmosphere and antioxidants addition},

author = {Violaine Gerard and Christophe Galopin and Emel Ay and Valentin Launay and Fabrice Morlet-Savary and Bernadette Graff and Jacques Lalevee},

doi = {10.1016/j.foodchem.2021.129949},

year  = {2021},

date = {2021-10-01},

journal = {Food Chemistry},

volume = {359},

pages = {129949},

abstract = {L-Tryptophan (L-Trp) is an amino acid important in nutrition, and mainly provided by food supplements. However, it is known to be unstable under light irradiation, which is an issue for the nutrition and feed industry. In the present study, the photostability of L-Trp was studied in acidic aqueous solutions under air and under an inert atmosphere, N2. The photodegradation was followed using UV-visible and fluorescence spectroscopy after photolysis. Moreover, molecular orbitals and bond dissociation energies calculations, and electron spin resonance spectroscopy were performed. From all these results, a photodegradation occurring through a free radical pathway was suggested. Interestingly, several antioxidants were tested to improve the photostability of L-Trp, especially during irradiation under air, since the L-Trp was evidenced to be much less stable under air than under N2. The results showed that sodium benzoate or EDTA were not efficient, but antioxidants such as chlorogenic acid, ascorbic acid or potassium sorbate improved significantly the photostability of L-Trp in acidic solutions.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Paruli2021,

title = {Photopolymerization and Photostructuring of Molecularly Imprinted Polymers},

author = {III Ernesto Paruli and Olivier Soppera and Karsten Haupt and Carlo Gonzato},

doi = {10.1021/acsapm.1c00661},

year  = {2021},

date = {2021-10-01},

journal = {Acs Applied Polymer Materials},

volume = {3},

number = {10},

pages = {4769--4790},

abstract = {Over the past few decades, molecularly imprinted polymers (MIPs) have become extremely attractive materials for biomimetic molecular recognition due to their excellent affinity and specificity, combined with robustness, easy engineering, and competitive costs. MIPs are synthetic antibody mimics obtained by the synthesis of 3D polymer networks around template molecules, thus generating specific binding cavities. Numerous efforts have been made to improve the performances and the versatility of MIPs, with a special focus on ways to control their size, morphology, and physical form for a given application. Gaining control over these parameters has allowed MIPs to adopt a defined micro- and nanostructure, providing access to nanocomposites and micro/nanosystems, with fine-tuned properties, which become critical for modern applications ranging from chemical sensing to bioimaging and medical therapy. In this rich and complex context, light as a cheap and versatile source of energy has emerged as a powerful tool for structuring MIPs. This review presents the most recent advances on structuring MIPs at the nano/ microscale, using light as a stimulus to trigger the polymerization process. Thus, after a general introduction on radical polymerization of MIPs, with a special emphasis on photopolymerization by UV and visible light, the reader will be presented with ways of structuring MIPs by processes that are inherently spatially confined, such as localized photopolymerization and lithographic techniques, supported by representative examples and complemented with a final outlook on future trends in this field.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Zhang2021ab,

title = {Resolving the structure of the striped Ge layer on Ag(111): Ag2Ge surface alloy with alternate fcc and hcp domains},

author = {K. Zhang and D. Sciacca and A. Coati and R. Bernard and Y. Borensztein and P. Diener and B. Grandidier and I. Lefebvre and M. Derivaz and C. Pirri and G. Prevot},

doi = {10.1103/PhysRevB.104.155403},

year  = {2021},

date = {2021-10-01},

journal = {Physical Review B},

volume = {104},

number = {15},

pages = {155403},

abstract = {Two-dimensional honeycomb lattices beyond graphene, such as germanene, promise new physical properties such as quantum spin Hall effect. While there have been many claims of growth of germanene, the lack of precise structural characterization of the epitaxial layers synthesized hinders further research. The striped layer formed by Ge deposition on Ag(111) has been recently ascribed as a stretched germanene layer. Using surface x-ray diffraction and density-functional theory calculations, we demonstrate that it corresponds in fact to a Ag2Ge surface alloy with an atomic density 6.45% higher than the Ag(111) atomic density. The overall structure is formed by stripes associated with a face-centered cubic top-layer alignment, alternating with stripes associated with a hexagonal close-packed top-layer alignment, in great analogy with the (22x root 3) Au(111) reconstruction.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Frikha2021,

title = {Exhausted Grape Marc Derived Biochars: Effect of Pyrolysis Temperature on the Yield and Quality of Biochar for Soil Amendment},

author = {Kawthar Frikha and Lionel Limousy and Muhammad Bilal Arif and Nicolas Thevenin and Lionel Ruidavets and Mohamed Zbair and Simona Bennici},

doi = {10.3390/su132011187},

year  = {2021},

date = {2021-10-01},

journal = {Sustainability},

volume = {13},

number = {20},

pages = {11187},

abstract = {The present study focuses on the valorisation of winery industry wastes through slow pyrolysis of exhausted grape marc (EGM). The optimal pyrolysis parameters were firstly identified by small scale experiments carried out using thermogravimetric analysis. Nine pyrolysis temperatures were tested and their influence on the decomposition of the EGM residue and biochar yield was evaluated. Then, biochar production was conducted in a pilot plant at three chosen temperatures (450, 500 and 550 & DEG;C) at which the biochar was shown to be stable. The effects of biochar application to soil with respect to plant (ryegrass) growth was also evaluated. Pyrolysis of EGM at the 450-550 & DEG;C temperature range has been shown to generate thermally stable and nutrient-rich biochars, but only the biochar produced at 450 & DEG;C showed a marked benefit effect of ryegrass growth.
},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Odarchenko2021,

title = {Assessing Fast Structure Formation Processes in Isotactic Polypropylene with a Combination of Nanofocus X-ray Diffraction and In Situ Nanocalorimetry},

author = {Yaroslav Odarchenko and Martin Rosenthal and Jaime J. Hernandez and David Doblas and Emanuela Di Cola and Mikhail Soloviev and Dimitri A. Ivanov},

doi = {10.3390/nano11102652},

year  = {2021},

date = {2021-10-01},

journal = {Nanomaterials},

volume = {11},

number = {10},

pages = {2652},

abstract = {A combination of in situ nanocalorimetry with simultaneous nanofocus 2D Wide-Angle X-ray Scattering (WAXS) was used to study polymorphic behaviour and structure formation in a single micro-drop of isotactic polypropylene (iPP) with defined thermal history. We were able to generate, detect, and characterize a number of different iPP morphologies using our custom-built ultrafast chip-based nanocalorimetry instrument designed for use with the European Synchrotron Radiation Facility (ESRF) high intensity nanofocus X-ray beamline facility. The detected iPP morphologies included monoclinic alpha-phase crystals, mesophase, and mixed morphologies with different mesophase/crystalline compositional ratios. Monoclinic crystals formed from the mesophase became unstable at heating rates above 40 K s(-1) and showed melting temperatures as low as ~30 K below those measured for iPP crystals formed by slow cooling. We also studied the real-time melt crystallization of nanogram-sized iPP samples. Our analysis revealed a mesophase nucleation time of around 1 s and the co-existence of mesophase and growing disordered crystals at high supercooling & LE;328 K. The further increase of the iPP crystallization temperature to 338 K changed nucleation from homogeneous to heterogeneous. No mesophase was detected above 348 K. Low supercooling (& GE;378 K) led to the continuous growth of the alpha-phase crystals. In conclusion, we have, for the first time, measured the mesophase nucleation time of supercooled iPP melted under isothermal crystallization conditions using a dedicated experimental setup designed to allow simultaneous ultrafast chip-based nanocalorimetry and nanofocus X-ray diffraction analyses. We also provided experimental evidence that upon heating, the mesophase converts directly into thermodynamically stable monoclinic alpha-phase crystals via perfection and reorganization and not via partial melting. The complex phase behaviour of iPP and its dependence on both crystallization temperature and time is presented here using a time-temperature-transformation (TTT) diagram.
},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Launay2021,

title = {Near-infrared light for polymer re-shaping and re-processing applications},

author = {Valentin Launay and Frederic Dumur and Didier Gigmes and Jacques Lalevee},

doi = {10.1002/pol.20210450},

year  = {2021},

date = {2021-10-01},

journal = {Journal of Polymer Science},

volume = {59},

number = {19},

pages = {2193--2200},

abstract = {The re-shaping and reprocessing of polymers are usually associated with strong energetic costs, strongly limiting their practical usage. In this article, a new approach is proposed based on a near-infrared (NIR) activation of the material in presence of a NIR heater for a highly efficient process upon ecofriendly NIR light emitting diodes irradiation. Markedly, due to this light-triggered process, a spatial control of the shaping/reprocessing behavior can be obtained, that is, only the needed parts are irradiated preventing a heating of all the sample. In this work, different thermoplastics are reshaped or reprocessed due to NIR activation in presence of an organic NIR dye used as heater. As other examples of photothermal treatment upon NIR light, the on-demand dehydration of polyethylene glycol (PEG-based) hydrogels are also provided. All the processes are followed in real time by thermal imaging camera.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Le2021bb,

title = {Water-Soluble Photoinitiators from Dimethylamino-Substituted Monoacylphosphine Oxide for Hydrogel and Latex Preparation},

author = {Cuong Minh Quoc Le and Tatiana Petitory and Xingyu Wu and Arnaud Spangenberg and Joanna Ortyl and Mariusz Galek and Lorena Infante and Heloise Therien-Aubin and Abraham Chemtob},

doi = {10.1002/macp.202100217},

year  = {2021},

date = {2021-10-01},

journal = {Macromolecular Chemistry and Physics},

volume = {222},

number = {19},

pages = {2100217},

abstract = {In order to respond to the growing demand for radiation-curable waterborne products like hydrogels or inks, there is a need for water-soluble radical photoinitiators exhibiting absorption in the near UV to visible range. Herein the synthesis of a novel type-I diphenylphosphine oxide photoinitiator bearing a 2,6-dimethyl-4-dimethylaminobenzoyl group is described. The presence of a tertiary amino group in the para position of the benzoyl group results in an increased absorption in the visible range and its facile conversion into water-soluble derivatives after a subsequent protonation or quaternization reaction. Quaternization with methyl triflate (MeOTf) yields a water-soluble monoacylphosphine oxide compound displaying a quaternary ammonium group -N(CH3)(3)(+) OTf-. The main characteristics are water-solubility, shelf-stability, absorption in near-UV range, low cytotoxicity, and efficient alpha-scission as evidenced by steady-state photolysis experiments. Its photopolymerization efficiency has been evaluated by real-time Fourier transform infrared spectroscopy at 385 and 420 nm using an aqueous solution of poly(ethylene glycol) acrylate. The polymerization rate is comparable to that obtained with the conventional water-soluble monoacylphosphine oxide TPO-Li. Using this new photoinitiator, 3D-printed hydrogels, and aqueous polymer dispersions can be prepared.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Hindiyeh2021,

title = {Preparedness Plan for the Water Supply Infrastructure during Water Terrorism-A Case Study from Irbid, Jordan},

author = {Muna Hindiyeh and Aiman Albatayneh and Rashed Tarawneh and Suzan Suleiman and Adel Juaidi and Ramez Abdallah and Salah Jellali and Mejdi Jeguirim},

doi = {10.3390/w13202887},

year  = {2021},

date = {2021-10-01},

journal = {Water},

volume = {13},

number = {20},

pages = {2887},

abstract = {Terrorism is a crucial danger to the world, especially the Middle East. As Jordan is amidst countries with armed conflicts, its natural resources (in particularly, water resources) are vulnerable to terrorist attacks. In this paper, possible biological and chemical weapons that can be used as intimidation, along with their threats, vulnerabilities, and inactivation methods, concerning water treatment processes in the municipality of Irbid, are studied. Irbid is the second largest city in terms of population in Jordan, after the capital city of Amman, and it is the nearest governorate to Syria borders that is considered a war zone. After conducting risk assessment that takes into consideration criticality, threats, and vulnerability, it appears that only one of the eight units, which is the Makhraba pumping station, along with the Bushra water tank, were identified as medium risk. The other units have treatment processes and proper precautions that are able to inactivate or prevent any possible contamination. A response plan should be set by developing a telemetry system with specific sensors that can detect any sudden and unacceptable threats to the water quality and that has the ability to shut down the concerned units automatically.
},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Brahmi2021c,

title = {Performance improvement of the photocatalytic process for the degradation of pharmaceutical compounds using new POM/polymer photocatalysts},

author = {Chaima Brahmi and Mahmoud Benltifa and Mariem Ghali and Frederic Dumur and Corine Simonnet-Jegat and Monnier Valerie and Fabrice Morlet-Savary and Latifa Bousselmi and Jacques Lalevee},

doi = {10.1016/j.jece.2021.106015},

year  = {2021},

date = {2021-10-01},

journal = {Journal of Environmental Chemical Engineering},

volume = {9},

number = {5},

pages = {106015},

abstract = {In the last few years, pharmaceutical compounds classified as emerging pollutants have attracted the attention of many researchers, due to their massive presence in soil, surface, sewage, groundwater and drinking water, as well as to their harmful effects on human health and the environment. In this context, the degradation of four drugs with different chemical structures, Ciprofloxacin, Oxytetracycline, Ibuprofen and Erythromycin was investigated. Indeed, in this paper, we studied the impact of the presence in the aqueous solution of a newly developed POM/polymer composite on the removal of these different drugs from water. Synthesis details and characterizations of these materials have already been reported within our group. The various experiments carried out during this study revealed that the presence of the phosphomolybdic acid-based composite was not essential for the total degradation of Ciprofloxacin and Oxytetracycline which could be totally removed from water by simple photolysis under UV-Visible lamp irradiation. However, under the same experimental conditions, the use of this photocatalyst was indispensable for the total mineralization of Ibuprofen, more recalcitrant than the other selected drugs. In fact, only 20% of this pharmaceutical was degraded by simple photolysis vs. 100% and 94% upon respectively, 90 min of UV-Visible lamp and solar irradiation, in the presence of the phosphomolybdic acid-based composite which was more pertinent than the usually used photocatalyst, namely titanium dioxide. The Ibuprofen degradation pathway was identified thanks to mass spectrometry analysis, conducted at different time intervals. The obtained results demonstrated also that POM/polymer composite inhibits the degradation of Erythromycin through the formation of more toxic intermediates than the original drug.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ghali2021b,

title = {LED and solar photodecomposition of erythrosine B and rose Bengal using H3PMo12O40/polymer photocatalyst},

author = {Mariem Ghali and Mahmoud Benltifa and Chaima Brahmi and Leila Elbassi and Frederic Dumur and Corine Simonnet-Jegat and Latifa Bousselmi and Jacques Lalevee},

doi = {10.1016/j.eurpolymj.2021.110743},

year  = {2021},

date = {2021-10-01},

journal = {European Polymer Journal},

volume = {159},

pages = {110743},

abstract = {Hybrid H3PMo12O40/polymer composites were proposed here for the simple photocatalytic decomposition of erythrosine B and rose Bengal because of their unwanted effect on the environmental microorganism. Interestingly, the composite exhibited efficient photocatalytic activity for the decomposition of dyes under both mild near UV irradiation and solar irradiation. High final conversions were obtained for both of dyes reaching 81% and 86% for the erythrosine B and rose Bengal respectively after 120 min of LED@375 nm illumination and 90% for both dyes after only 30 min of solar exposure. The photocatalytic stability was also demonstrated. The photoluminescence technique was used to prove hydroxyl radicals implication into the photo-decomposition reaction using H3PMo12O40/polymer. The efficiency of the proposed treatment was confirmed by the evaluation of the ecotoxicity effect of by-products of each dye on two bacterial strains.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Dutournie2021,

title = {A Novel Numerical Procedure to Estimate the Electric Charge in the Pore from Filtration of Single-Salt Solutions},

author = {Patrick Dutournie and T. Jean Daou and Sebastien Deon},

doi = {10.3390/membranes11100726},

year  = {2021},

date = {2021-10-01},

journal = {MEMBRANES},

volume = {11},

number = {10},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Zhang2021d,

title = {Resolving the structure of the striped Ge layer on Ag(111): Ag2Ge surface alloy with alternate fcc and hcp domains},

author = {K. Zhang and D. Sciacca and A. Coati and R. Bernard and Y. Borensztein and P. Diener and B. Grandidier and I Lefebvre and M. Derivaz and C. Pirri and G. Prevot},

doi = {10.1103/PhysRevB.104.155403},

issn = {2469-9950},

year  = {2021},

date = {2021-10-01},

journal = {PHYSICAL REVIEW B},

volume = {104},

number = {15},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Le2021b,

title = {Water-Soluble Photoinitiators from Dimethylamino-Substituted Monoacylphosphine Oxide for Hydrogel and Latex Preparation},

author = {Cuong Minh Quoc Le and Tatiana Petitory and Xingyu Wu and Arnaud Spangenberg and Joanna Ortyl and Mariusz Galek and Lorena Infante and Heloise Therien-Aubin and Abraham Chemtob},

doi = {10.1002/macp.202100217},

year  = {2021},

date = {2021-10-01},

journal = {Macromolecular Chemistry and Physics},

volume = {222},

number = {19},

pages = {2100217},

abstract = {In order to respond to the growing demand for radiation-curable waterborne products like hydrogels or inks, there is a need for water-soluble radical photoinitiators exhibiting absorption in the near UV to visible range. Herein the synthesis of a novel type-I diphenylphosphine oxide photoinitiator bearing a 2,6-dimethyl-4-dimethylaminobenzoyl group is described. The presence of a tertiary amino group in the para position of the benzoyl group results in an increased absorption in the visible range and its facile conversion into water-soluble derivatives after a subsequent protonation or quaternization reaction. Quaternization with methyl triflate (MeOTf) yields a water-soluble monoacylphosphine oxide compound displaying a quaternary ammonium group -N(CH3)(3)(+) OTf-. The main characteristics are water-solubility, shelf-stability, absorption in near-UV range, low cytotoxicity, and efficient alpha-scission as evidenced by steady-state photolysis experiments. Its photopolymerization efficiency has been evaluated by real-time Fourier transform infrared spectroscopy at 385 and 420 nm using an aqueous solution of poly(ethylene glycol) acrylate. The polymerization rate is comparable to that obtained with the conventional water-soluble monoacylphosphine oxide TPO-Li. Using this new photoinitiator, 3D-printed hydrogels, and aqueous polymer dispersions can be prepared.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ji2021,

title = {4D Thermomechanical metamaterials for soft microrobotics},

author = {Qingxiang Ji and Johnny Moughames and Xueyan Chen and Guodong Fang and Juan J. Huaroto and Vincent Laude and Julio Andres Iglesias Martinez and Gwenn Ulliac and Cedric Clevy and Philippe Lutz and Kanty Rabenorosoa and Valerian Guelpa and Arnaud Spangenberg and Jun Liang and Alexis Mosset and Muamer Kadic},

doi = {10.1038/s43246-021-00189-0},

year  = {2021},

date = {2021-09-01},

journal = {Communications Materials},

volume = {2},

number = {1},

pages = {93},

abstract = {4D metamaterials offer the additional functionality of being responsive to external stimuli. Here, a metamaterial-based soft robot is composed of bilayer plates that can rotate and translate in response to thermal stimuli, allowing controlled motion. Metamaterials have attracted wide scientific interest to break fundamental bounds on materials properties. Recently, the field has been extending to coupled physical phenomena where one physics acts as the driving force for another. Stimuli-responsive or 4D metamaterials have been demonstrated for thermo-elasticity, magneto-optics or piezo-electricity. Herein, a soft, ultra-compact and accurate microrobot is described which can achieve controlled motion under thermal stimuli. The system consists of an organized assembly of two functional structures: a rotational and a translational element. Both elements are designed basing upon the principle of the thermoelastic bilayer plate that bends as temperature changes. Samples are fabricated using gray-tone lithography from a single polymer but with two different laser writing powers, making each part different in its thermal and mechanical behaviors. Excellent motion-controllable, reversible and stable features in a dry environment are verified by simulations and experiments, revealing broad application prospects for the designed soft micro actuators.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Chen2021g,

title = {Water-Soluble Visible Light Sensitive Photoinitiating System Based on Charge Transfer Complexes for the 3D Printing of Hydrogels},

author = {Hong Chen and Mehdi Vahdati and Pu Xiao and Frederic Dumur and Jacques Lalevee},

doi = {10.3390/polym13183195},

year  = {2021},

date = {2021-09-01},

journal = {Polymers},

volume = {13},

number = {18},

pages = {3195},

abstract = {The development of visible-light 3D printing technology by using water-soluble initiating systems has attracted widespread attention due to their potential applications in the manufacture of hydrogels. Besides, at present, the preparation of water-soluble photoinitiators suitable for visible light irradiation (such as LEDs) still remains a challenge. Therefore, this work is devoted to developing water-soluble photoinitiators (PI)/photoinitiating systems (PIS) upon irradiation with a LED @ 405 nm. In detail, a new water-slightly-soluble chalcone derivative dye [(E)-3-(4-(dimethylamino) phenyl)-1-(4-(2-(2-(2-methoxyethoxy) ethoxy) ethoxy) phenyl) prop-2-en-1-one] was synthesized here and used as a PI with a water-soluble coinitiator, i.e., triethanolamine (TEA) which was also used as an electron donor. When combined together, a charge transfer complex (CTC) formed immediately which exhibited excellent initiating ability for the free radical photopolymerization of poly(ethyleneglycol)diacrylate (PEG-DA). In light of the powerful CTC effect, the [dye-TEA] CTC could not only exhibit enhanced water solubility and mechanical properties but could also be effectively applied for 3D printing. This CTC system is environmentally friendly and cost-saving which demonstrates a great potential to prepare hydrogels via photopolymerization.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Breloy2021b,

title = {Azacalixphyrins as an innovative alternative for the free-radical photopolymerization under visible and NIR irradiation without the need of co-initiators},

author = {Louise Breloy and Rana Mhanna and Jean-Pierre Malval and Vlasta Brezova and Denis Jacquemin and Simon Pascal and Olivier Siri and Davy-Louis Versace},

doi = {10.1039/d1cc03607f},

year  = {2021},

date = {2021-09-01},

journal = {Chemical Communications},

volume = {57},

number = {71},

pages = {8973--8976},

abstract = {Azacalixphyrins are unique aromatic macrocycles featuring strong absorption from the visible to the near-infrared (NIR) spectral ranges. This work demonstrates through EPR spin-trapping experiments that the N-alkyl tetrasubstituted azacalixphyrin (ACP) can lead to the formation of carbon-centered radicals initiating for the free-radical photopolymerization (FRP) of bio-based acrylate monomer upon the irradiation of several light emitting diodes, which emissions range from 455 to 660 nm. Compared to other previously reported systems, the tremendous advantage of the ACP photoinitiating system is its ability to promote photopolymerization on its own, avoiding the introduction of co-initiators. A new potential application of this promising photoinitiator is highlighted through the fabrication of well-defined microstructures under NIR laser diode irradiation at lambda = 800 nm.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Hindiyeh2021a,

title = {Sea Level Rise Mitigation by Global Sea Water Desalination Using Renewable-Energy-Powered Plants},

author = {Muna Hindiyeh and Aiman Albatayneh and Rashed Altarawneh and Mustafa Jaradat and Murad Al-Omary and Qasem Abdelal and Tarek Tayara and Osama Khalil and Adel Juaidi and Ramez Abdallah and Partick Dutournie and Mejdi Jeguirim},

doi = {10.3390/su13179552},

year  = {2021},

date = {2021-09-01},

journal = {Sustainability},

volume = {13},

number = {17},

pages = {9552},

abstract = {This work suggests a solution for preventing/eliminating the predicted Sea Level Rise (SLR) by seawater desalination and storage through a large number of desalination plants distributed worldwide; it also comprises that the desalinated seawater can resolve the global water scarcity by complete coverage for global water demand. Sea level rise can be prevented by desalinating the additional water accumulated into oceans annually for human consumption, while the excess amount of water can be stored in dams and lakes. It is predicted that SLR can be prevented by desalination plants. The chosen desalination plants for the study were Multi-Effect Desalination (MED) and Reverse Osmosis (RO) plants that are powered by renewable energy using wind and solar technologies. It is observed that the two main goals of the study are fulfilled when preventing an SLR between 1.0 m and 1.3 m by 2100 through seawater desalination, as the amount of desalinated water within that range can cover the global water demand while being economically viable.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}