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Paracetamol Sensitive Cellulose-Based Electrochemical Sensors

Journal of Renewable Materials 2018年第3期6卷 242-250页

作者： Maxime Pontie Serge Foukmeniok Mbokou jean-philippe bouchara Bienvenue Razafimandimby Sylvie Egloff Ornella Dzilingomo Pierre-Yves Pontalier Ignas Kenfack Tonle Host-Pathogen Interaction Study Group(GEIHP EA 3142)UNIV AngersUNIV BrestBretagne Loire UniversityInstitute of Health Biology-IRISCHU4 rue Larrey49933 AngersFrance Electrochemistry and Chemistry of Materials Department of ChemistryUniversity of DschangP.O.Box 67 DschangCameroon Toulouse University INP-ENSIACETLCA(Laboratory of Agro-industrial Chemistry)31030 Toulouse France

Electrochemical determination of paracetamol(PCT)was successfully performed using carbon paste electrodes(CPEs)modified with treated coffee husks(CHt)or cellulose powder(Ce).Scanning electron microscopy was used to characterize unmodified or modified CPEs prior to their *** electrochemical oxidation of PCT was investigated using square wave voltammetry(SWV)and cyclic voltammetry(CV).The oxidation current density of PCT was two-fold higher with the CPE-CHt sensor and 30%higher with CPE-Ce in comparison with the unmodified CPE,and this correlated with the higher hydrophilicity of the modified *** SWV for the electrochemical analysis of PCT,carbon paste electrode modified with raw coffee husks(CPE-CHr)showed the presence of impurities at+0.27 V/SCE,showing the interest in using pure cellulose for the present analytical ***,CPE-Ce presented a higher real area compared to CPE-CHr,which explains the increase in the limit of saturation from 400 mg/L to 950 mg/*** better saturation limit exhibited by CPE-Ce justifies its choice for electroanalysis of PCT in commercialized *** proposed method was successfully applied in the determination of PCT in commercialized tablets(DolipraneR 500)with a recovery rate close to 100%,and no interference with the excipients contained in the tablets analyzed was *** novel sensor opens the way for sustainable development of electroanalytical control of drugs sold individually in developing countries.

关键词： Paracetamol carbon paste electrode coffee husks cellulose fibers square wave voltammetry electroanalysis

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Understanding the Assembly Mechanism of Proteins from Monte Carlo Simulations

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Applied Mathematics 2017年第3期8卷 280-292页

作者： Stéphane Cuenot Agata Zykwinska Sadia Radji jean-philippe bouchara Institut des Matériaux jean Rouxel (IMN) Université de Nantes Nantes France IFREMER Laboratoire Ecosystèmes Microbiens et Molécules Marines pour les Biotechnologies Nantes France IPREM Equipe de Physique et Chimie des Polymères Université de Pau et des Pays de l’Adour Pau France UNIV Bretagne-Loire Université d’Angers Université de Brest Groupe d’Etude des Interactions Hote-Pathogène Angers France Laboratoire de Parasitologie-Mycologie Centre Hospitalier Universitaire Institut de Biologie en Santé Angers France

Understanding the molecular mechanism of the protein assembly still remains a challenge in the case of many biological systems. In this frame, the mechanism which drives RodA hydrophobins to self-assemble onto the surface of the conidia of the human fungal pathogen Aspergillus fumigatus into highly ordered nanorods known as rodlets, is still unresolved. Here, AFM investigations were combined with Monte Carlo simulations to elucidate how these small amphiphilic proteins self-assemble into tightly packed rodlets and how they are further organized in nanodomains. It becomes that the assembly of RodA hydrophobins into rodlets and their parallel alignment within nanodomains result from their anisotropic properties. Monte Carlo simulations allowed us to confirm that anisotropic interactions between macromolecules are sufficient to drive them to assembly into rodlets prior to nanodomains formation. Better knowledge of the mechanism of hydrophobins assembly into rodlets offers new prospects for the development of novel strategies leading to inhibition of rodlet formation, which should allow more rapid detection of the conidia by the immune system.

关键词： Protein Assembly Aspergillus fumigatu Anisotropic Interactions Monte Carlo Simulations

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Telencephalic stab wound injury induces regenerative angiogenesis and neurogenesis in zebrafish:unveiling the role of vascular endothelial growth factor signaling and microglia

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Neural Regeneration Research 2025年第10期20卷 2938-2954页

作者： Danielle Fernezelian philippe Rondeau Laura Gence Nicolas Diotel Universitéde La Réunion INSERMUMR 1188Diabète athérothrombose Thérapies Réunion Océan Indien(DéTROI)Saint PierreLa RéunionFrance

After brain damage,regenerative angiogenesis and neurogenesis have been shown to occur simultaneously in mammals,suggesting a close link between these ***,the mechanisms by which these processes interact are not well *** this work,we aimed to study the correlation between angiogenesis and neurogenesis after a telencephalic stab wound *** this end,we used zebrafish as a relevant model of neuroplasticity and brain repair ***,using the Tg(fli1:EGFP×mpeg1.1:mCherry)zebrafish line,which enables visualization of blood vessels and microglia respectively,we analyzed regenerative angiogenesis from 1 to 21 days *** parallel,we monitored brain cell proliferation in neurogenic niches localized in the ventricular zone by using *** found that after brain damage,the blood vessel area and width as well as expression of the fli1 transgene and vascular endothelial growth factor(vegfaa and vegfbb)were *** the same time,neural stem cell proliferation was also increased,peaking between 3 and 5 days post-lesion in a manner similar to angiogenesis,along with the recruitment of ***,through pharmacological manipulation by injecting an anti-angiogenic drug(Tivozanib)or Vegf at the lesion site,we demonstrated that blocking or activating Vegf signaling modulated both angiogenic and neurogenic processes,as well as microglial ***,we showed that inhibition of microglia by clodronate-containing liposome injection or dexamethasone treatment impairs regenerative neurogenesis,as previously described,as well as injury-induced *** conclusion,we have described regenerative angiogenesis in zebrafish for the first time and have highlighted the role of inflammation in this *** addition,we have shown that both angiogenesis and neurogenesis are involved in brain repair and that microglia and inflammation-dependent mechanisms activated by Vegf signaling are important contributors to

关键词： angiogenesis cerebral damage inflammation neurogenesis stab wound telencephalon vascular endothelial growth factor zebrafish

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Proposed nomenclature for Pseudallescheria,Scedosporium and related genera

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Fungal Diversity 2014年第4期67卷 1-10页

作者： Michaela Lackner G.Sybren de Hoog Liyue Yang Leandro Ferreira Moreno Sarah A.Ahmed Fritz Andreas Josef Kaltseis Markus Nagl Cornelia Lass-Florl Brigitte Risslegger Gunter Rambach Cornelia Speth Vincent Robert Walter Buzina Sharon Chen jean-philippe bouchara Jose F.Cano-Lira Josep Guarro Josepa Gené Fabiola Fernández Silva Rosa Haido Gerhard Haase Vladimir Havlicek Dea Garcia-Hermoso Jacques F.Meis Ferry Hagen Martin Kirchmair Johannes Rainer Katharina Schwabenbauer Mirjam Zoderer Wieland Meyer Felix Gilgado Vania A.Vicente Elena Piecková Monika Regenermel Peter-Michael Rath Joerg Steinmann Xisto Wellington de Alencar Francoise Symoens Kathrin Tintelnot Krzysztof Ulfig Aristea Velegraki Anna Maria Tortorano Sandrine Giraud Sara Mina Kinga Rigler-Hohenwarter Fernando L.Hernando Andoni Ramirez-Garcia Aize Pellon Jashanpreet Kaur Eliana Barreto Bergter Jardel Vieira de Meirelles Ingrid Dutra da Silva Laurence Delhaes Ana Alastruey-Izquerdo Ruo-yu Li Qiaoyun Lu Tarek Moussa Omar Almaghrabi Hassan Al-Zahrani Gen Okada Shuwen Deng Wangqing Liao Jingsi Zeng Jouni Issakainen Livia Cristina Liporagi Lopes Division of Hygiene and Medical Microbiology Innsbruck Medical UniversityInnsbruckAustria CBS Fungal Biodiversity Centre UtrechtThe Netherlands Institute for Biodiversity and Ecosystem Dynamics University of AmsterdamAmsterdamThe Netherlands Sun Yat-Sen Memorial Hospital Sun Yat-Sen UniversityGuangzhouChina Medical University of Graz GrazAustria Centre for Infectious Diseases and Microbiology Westmead HospitalWestmeadAustralia Laboratoire de Parasitologie-Mycologie Centre Hospitalier UniversitaireAngersFrance Unitats de Microbiologia i d’Anatomia Patològica Facultat de Medicina i Ciències de la Salut IISPVUniversitat Rovira i VirgiliReusSpain Universidade Federal do Estado do Rio de Janeiro Rio de JaneiroBrazil Institute of Medical Microbiology University Hospital RWTHAachenGermany Institute of Microbiology Academy of SciencesPragueCzech Republic Institut Pasteur Unitéde Mycologie MoléculaireCentre National de Référence Mycoses Invasives et AntifongiquesParisFrance Department of Medical Microbiology and Infectious Diseases Canisius-Wilhelmina HospitalNijmegenThe Netherlands Department of Medical Microbiology RadboudumcNijmegenThe Netherlands Institute of Microbiology eopold-Franzens-University InnsbruckInnsbruckAustria Molecular Mycology Research Laboratory Centre for Infectious Diseases and MicrobiologySydneyMedical School—Westmead HospitalMarie Bashir Institute for Infectious Diseases and BiosecurityThe University of SydneyWestmead Millennium InstituteWestmeadNSWAustralia Basic Pathology Department Federal University of ParanáStateCuritibaParanáBrazil Fellowship from Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq) BrasíliaBrazil Institute of Preventive and Clinical Medicine BratislavaSlovakia Institut für Hygiene und Mikrobiologie Landesklinikum St.Pölten St.PöltenAustria Institute of Medical Microbiology University Hospital EssenEssenGermany Nursing School of Unigranrio Rio de JaneiroBrazil Scientific Institute of Public Health Culture Collectio

As a result of fundamental changes in the International Code of Nomenclature on the use of separate names for sexual and asexual stages of fungi,generic names of many groups should be *** of the ECMM/ISHAM working group on Pseudallescheria/Scedosporium infections herein advocate a novel nomenclature for genera and species in Pseudallescheria,Scedosporium and allied *** generic names Parascedosporium,Lomentospora,Petriella,Petriellopsis,and Scedosporium are proposed for a lineage within Microascaceae with mostly Scedosporium anamorphs producing slimy,annellidic *** that Scedosporium has priority over Pseudallescheria and that Scedosporium prolificans is phylogenetically distinct from the other Scedosporium species,some name changes are *** minutispora and Petriellidium desertorum are renamed as Scedosporium minutisporum and ***,*** prolificans is renamed as Lomentospora prolificans.

关键词： Graphium Lomentospora Petriella Scedosporium apiospermum complex Microascaceae Nomenclature

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Correction to:Proposed nomenclature for Pseudallescheria,Scedosporium and related genera

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Fungal Diversity 2022年第2期113卷 193-194页

作者： Michaela Lackner G.Sybren de Hoog Liyue Yang Leandro Ferreira Moreno Sarah A.Ahmed Fritz Andreas Josef Kaltseis Markus Nagl Cornelia Lass-Florl Brigitte Risslegger Gunter Rambach Cornelia Speth Vincent Robert Walter Buzina Sharon Chen jean-philippe bouchara Jose F.Cano-Lira Josep Guarro Josepa Gene Fabiola Fernandez Silva Rosa Haido Gerhard Haase Vladimir Havlicek Dea Garcia-Hermoso Jacques F.Meis Ferry Hagen Martin Kirchmair Johannes Rainer Katharina Schwabenbauer Mirjam Zoderer Wieland Meyer Felix Gilgado Vania A.Vicente Elena Pieckova Monika Regenermel Peter-Michael Rath Joerg Steinmann Xisto Wellington de Alencar Françoise Symoens Kathrin Tintelnot Krzysztof Ulfig Aristea Velegraki Anna Maria Tortorano Sandrine Giraud Sara Mina Kinga Rigler-Hohenwarter Fernando L.Hernando Andoni Ramirez-Garcia Aize Pellon Jashanpreet Kaur Eliana Barreto Bergter Jardel Vieira de Meirelles Ingrid Dutra da Silva Laurence Delhaes Ana Alastruey-Izquierdo Ruo-yu Li Qiaoyun Lu Tarek Moussa Omar Almaghrabi Hassan Al-Zahrani Gen Okada Shuwen Deng Wangqing Liao Jingsi Zeng Jouni Issakainen Livia Cristina Liporagi Lopes Division of Hygiene and Medical Microbiology Innsbruck Medical UniversityInnsbruckAustria CBS Fungal Biodiversity Centre UtrechtThe Netherlands Institute for Biodiversity and Ecosystem Dynamics University of AmsterdamAmsterdamThe Netherlands Sun Yat-Sen Memorial Hospital Sun Yat-Sen UniversityGuangzhouChina Medical University of Graz GrazAustria Centre for Infectious Diseases and Microbiology Westmead HospitalWestmeadAustralia Laboratoire de Parasitologie-Mycologie Centre Hospitalier UniversitaireAngersFrance Unitats de Microbiologia i d’Anatomia Patologica Facultat de Medicina i Ciencies de la Salut IISPVUniversitat Rovira i VirgiliReusSpain Universidade Federal do Estado do Rio de Janeiro Rio de JaneiroBrazil Institute of Medical Microbiology University Hospital RWTHAachenGermany Institute of Microbiology Academy of SciencesPragueCzech Republic Institut Pasteur Unite de Mycologie MoleculaireCentre National de Reference Mycoses Invasives et AntifongiquesParisFrance Department of Medical Microbiology and Infectious Diseases Canisius-Wilhelmina HospitalNijmegenThe Netherlands Department of Medical Microbiology RadboudumcNijmegenThe Netherlands Institute of Microbiology eopold-Franzens-University InnsbruckInnsbruckAustria Molecular Mycology Research Laboratory Centre for Infectious Diseases and MicrobiologySydneyMedical School—Westmead HospitalMarie Bashir Institute for Infectious Diseases and BiosecurityThe University of SydneyWestmead Millennium InstituteWestmeadNSWAustralia Basic Pathology Department Federal University of Parana StateCuritibaParanaBrazil Fellowship from Conselho Nacional de Desenvolvimento Cientifico e Tecnologico(CNPq) BrasiliaBrazil Institute of Preventive and Clinical Medicine BratislavaSlovakia Institut für Hygiene und Mikrobiologie Landesklinikum St.Pölten St.PoltenAustria Institute of Medical Microbiology University Hospital EssenEssenGermany Nursing School of Unigranrio Rio de JaneiroBrazil Scientific Institute of Public Health Culture Collect

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Redox and acetylation coordinate ABA-independent osmotic stress response

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Molecular Plant 2022年第4期15卷 583-585页

作者： Christophe Belin jean-philippe Reichheld Laboratoire Génome et Développement des Plantes UniversitéPerpignan Via Domitia66860 PerpignanFrance Laboratoire Génome et Développement des Plantes CNRS66860 PerpignanFrance

Osmotic stress caused by drought or high salt concentrations is a major threat that limits plant development and affect crop *** the context of climate change,understanding the mechanisms by which plants perceive their environment to adapt to their development is a major question.A common feature of plants being exposed to osmotic stress is the accumulation of excessive reactive oxygen species(ROS)(Martinière et al.,2019).ROS can oxidatively damage biological molecules,such as nucleic acids,proteins,and lipids,but also play important signaling *** protect from ROS-induced oxidation,living organisms have developed a large panel of enzymatic and non-enzymatic systems to remove ROS and oxidized molecules.

关键词： functions. enzymatic coordinate

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Hepatocyte nuclear factor 4-alpha involvement in liver and intestinal inflammatory networks

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World Journal of Gastroenterology 2014年第1期20卷 22-30页

作者： jean-philippe Babeu Franois Boudreau Département d’ Anatomie et de Biologie Cellulaire Faculté de Médecine et des Sciences de la SantéUniversité de SherbrookeSherbrooke J1E 4K8QuébecCanada

Hepatocyte nuclear factor 4-alpha (HNF4-α) is a nuclear receptor regulating metabolism, cell junctions, differentiation and proliferation in liver and intestinal epithelial cells. Mutations within the HNF4A gene are associated with human diseases such as maturity-onset diabetes of the young. Recently, HNF4A has also been described as a susceptibility gene for ulcerative colitis in genome-wide association studies. In addition, specific HNF4A genetic variants have been identified in pediatric cohorts of Crohn’s disease. Results obtained from knockout mice supported that HNF4-α can protect the intestinal mucosae against inflammation. However, the exact molecular links behind HNF4-α and inflammatory bowel diseases remains elusive. In this review, we will summarize the current knowledge about the role of HNF4-α and its isoforms in inflammation. Specific nature of HNF4-α P1 and P2 classes of isoforms will be summarized. HNF4-α role as a hepatocyte mediator for cytokines relays during liver inflammation will be integrated based on documented examples of the literature. Conclusions that can be made from these earlier liver studies will serve as a basis to extrapolate correlations and divergences applicable to intestinal inflammation. Finally, potential functional roles for HNF4-α isoforms in protecting the intestinal mucosae from chronic and pathological inflammation will be presented.

关键词： Hepatocyte nuclear factor 4-alpha Inflammatory bowel diseases Colitis-associated cancer Gastrointestinal tract Intestinal epithelium barrier Inflammation

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Recent Advances on Graphene Quantum Dots for Electrochemical Energy Storage Devices

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Energy & Environmental Materials 2022年第1期5卷 201-214页

作者： Noura Zahir Pierre Magri Wen Luo jean Jacques Gaumet philippe Pierrat CNRS L2CM UMR 7053 Universit e de Lorraine LCP-A2MC EA4632 Institut Jean Barriol Universit e de Lorraine State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technologywuhan 430070china

Graphene quantum dots(GQDs)which are nanofragments of graphene with an average size between 2 and 50 nm have attracted much attention due to their outstanding properties such as high conductivity,high surface area,and good solubility in various *** combine the quantum confinement and edges effects and the properties of ***,GQDs offers a broad range of applications in various fields(medicine,energy conversion,and energy storage devices).This review will present the recent research based on the introduction of GQDs in batteries,supercapacitors,and microsupercapacitors as electrodes materials or mixed with an active material as an auxiliary ***,discussed on selected examples,summarize the electrochemical performances and finally,challenges and perspectives are recalled for the subsequent optimization strategy of electrode *** review is expected to appeal a broad interest on functional GQDs materials and promote the further development of high-performance energy storage device.

关键词： energy storage graphene quantum dots lithium ion batteries sodium ion batteries supercapacitor

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One-Pot Microwave-Assisted Synthesis of Graphene/Layered Double Hydroxide(LDH) Nanohybrids

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Nano-Micro Letters 2015年第4期7卷 332-340页

作者： Sunil P.Lonkar jean-Marie Raquez philippe Dubois Laboratory of Polymeric and Composite Materials Center of Innovation and Research in Materials and PolymersUniversity of Mons Department of Chemical Engineering The Petroleum Institute

A facile and rapid method to synthesize graphene/layered double hydroxide(LDH)nanohybrids by a microwave technique is *** synthesis procedure involves hydrothermal crystallization of Zn–Al LDH at the same time in situ reduction of graphene oxide(GO)to *** microstructure,composition,and morphology of the resulting graphene/LDH nanohybrids were *** results confirmed the formation of nanohybrids and the reduction of graphene *** growth mechanism of LDH and in situ reduction of GO were *** LDH sheet growth was found to prevent the scrolling of graphene layers in resulting *** electrochemical properties exhibit superior performance for graphene/Zn–Al LDH hybrids over pristine *** present approach may open a strategy in hybridizing graphene with multimetallic nano-oxides and hydroxides using microwave method.

关键词： Graphene LDHs Nanostructures Microwave Composite materials

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On the relevance of analytical film thickness EHD equations for isothermal point contacts: Qualitative or quantitative predictions?

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Friction 2016年第4期4卷 369-379页

作者： jean-David WHEELER philippe VERGNE Nicolas FILLOT David PHILIPPON Univ Lyon INSA Lyon CNRS LaMCoS-UMR5259 Villeurbanne F-69621 France

Thin film and elastohydrodynamic lubrication regimes are rather young domains of tribology and they are still facing unresolved *** they rely upon a full separation of the moving surfaces by a thin (or very thin) fluid film,the knowledge of its thickness is of paramount importance,as for instance to developing lubricated mechanisms with long lasting and efficient *** a consequence,a large collection of formulae for point contacts have been proposed in the last 40 ***,their accuracy and validity have rarely been *** purpose of this paper is to offer an evaluation of the most widespread analytical formulae and to define whether they can be used as qualitative or quantitative *** methodology is based on comparisons with a numerical model for two configurations,circular and elliptical,considering both central and minimum film thicknesses.

关键词： thin film lubrication elastohydrodynamic lubrication (EHL) film thickness prediction EHD analytical equation central film thickness minimum film thickness circular contacts elliptical contacts

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