A5088402106- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Advanced Chemical Sensor Technologies
- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Catalytic Processes in Materials Science
- Nanoplatforms for cancer theranostics
- Isotope Analysis in Ecology
- Air Quality and Health Impacts
- Innovations in Aquaponics and Hydroponics Systems
- Insect Pheromone Research and Control
- Air Quality Monitoring and Forecasting
- Meat and Animal Product Quality
- Indoor Air Quality and Microbial Exposure
- Horticultural and Viticultural Research
- Identification and Quantification in Food
- Advanced Polymer Synthesis and Characterization
- Odor and Emission Control Technologies
- Pickering emulsions and particle stabilization
- Innovative Microfluidic and Catalytic Techniques Innovation
- Mercury impact and mitigation studies
- Tea Polyphenols and Effects
- Animal Nutrition and Physiology
- Glycosylation and Glycoproteins Research
- Plant Pathogens and Fungal Diseases
Centre National de la Recherche Scientifique
2014-2025
Université de Pau et des Pays de l'Adour
2014-2025
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
2015-2025
IMT Mines Alès
2022-2024
Institut des Sciences Analytiques
2024
Nantes Université
2008-2014
Biocat
2009
École Normale Supérieure de Lyon
2004-2005
Laboratoire Reproduction et Développement des Plantes
2005
Institut National de la Recherche Agronomique
2005
High dietary carbohydrates can spare protein in rainbow trout (Oncorhynchus mykiss) but may affect growth and health. Inulin, a prebiotic, could have nutritional metabolic effects, along with anti-inflammatory properties teleosts, improving welfare. We tested this hypothesis by feeding them 100% plant-based diet, which is viable alternative to fishmeal fish oil aquaculture feeds. In two-factor design, we examined the impact of inulin (2%) as well variation (CHO)/plant ratio on trout....
Cold atmospheric pressure plasmas (CAPPs) are known to have bactericidal effects but the mechanism of their interaction with microorganisms remains poorly understood. In this study bacteria Escherichia coli were used as a model and exposed CAPPs. Different gas compositions, helium or without adjunctions nitrogen oxygen, used. Our results indicated that CAPP induced bacterial death at decontamination levels depend on duration, post-treatment storage mixture composition for treatment. The...
Abstract Orcinol O-methyltransferase (OOMT) 1 and 2 catalyze the last two steps of biosynthetic pathway leading to phenolic methyl ether 3,5-dimethoxytoluene (DMT), major scent compound many rose (Rosa x hybrida) varieties. Modern roses are descended from both European Chinese species, latter being producers ethers but not former. Here we investigated why production occurs in some all In DMT-producing varieties, OOMTs were shown be localized specifically petal, predominanty adaxial epidermal...
This work studies the reactivity of poly(N-vinylcaprolactam-co-vinyl acetate-co-vinylbenzyl Rose Bengal) microgels (VBRB@MG) as heterogeneous photosensitizers in a continuous-flow process for sustainable singlet oxygen-sensitized photooxygenation bio-based molecule. Experiments were carried out light-emitting diode (LED)-driven spiral-shaped microreactor which slurry Taylor flows generated, allowing accurate control irradiation, light absorption, and gas–liquid flow conditions. The benchmark...
Engineering of glycosidases with efficient transglycosidases activity is an alternative to glycosyltransferases or glycosynthases for the synthesis oligosaccharides and glycoconjugates. However, engineering by directed evolution methodologies hampered lack screening systems sugar-transfer activity. We report here development digital imaging-based high-throughput methodology into transgalactosidases. Using this methodology, we detected transglycosidase mutants in intact Escherichia coli cells...
Abstract The production of singlet oxygen in aqueous solutions by photosensitizers (PS) grafted on silica was evaluated using the widely‐known quencher, furfuryl alcohol (FFA). Although reliable data could be obtained when working with some water‐soluble PS homogeneous solution, strong diffusion effects prevented measurement accurate quantum yields materials. Moreover, electron‐transfer reactions were possible and produced other reactive species (ROS), FFA oxidation did not result from but...
Abstract Compelling evidence suggests that volatile organic compounds (VOCs) have potentially harmful effects to the skin. However, knowledge about cellular signaling events and toxicity subsequent VOC exposure human skin cells is still poorly documented. The aim of this study was focus on interaction between 5 different VOCs (hexane, toluene, acetaldehyde, formaldehyde acetone) at doses mimicking chronic low level environmental effect keratinocytes get better insight into VOC-cell...
Rationale The concentrations of aldehydes and volatile fatty acids have to be controlled because their potential harmfulness in indoor air or relationship with the organoleptic properties agri‐food products. Although several specific analytical methods are currently used, simultaneous analysis these compounds a complex matrix remains challenge. combination positive negative ionization selected ion flow tube mass spectrometry (SIFT‐MS) allows accurate, sensitive high‐frequency gas mixtures...
Abstract Inulin affects nutrition and metabolism in many animals. Although inulin is widely used the diet of teleosts, its mechanism action unknown. Here, we investigated effect (2 %) on intestinal microbiome rainbow trout ( Oncorhynchus mykiss ) selected for growth survival when fed a 100 % plant-based suave control line temoin ). Metabolic responses to two factors (line inulin) liver, intestine, muscle adipose were tissue-specific, with interaction between influencing overall expression...
Abstract Photocatalytic vs. photosensitizing materials to be used for gas‐phase photooxidation and photooxygenation, respectively, are described. An overview is given on reactive oxygen species specific photocatalysis photosensitization as well various kinds of reactors photocatalytic in order illustrate the great number possible configurations conditions use. Some efforts towards standardization devoted indoor‐ or outdoor‐air treatment mentioned. Examples application singlet solvent‐free...
Peptide ligand-induced dimerization of the extracellular region epidermal growth factor receptor (sEGFR) is central to signal transduction many cellular processes. A small molecule microarray screen has been developed search for non-peptide compounds able bind sEGFR. We describe discovery nitro-benzoxadiazole (NBD) that enhance tyrosine phosphorylation EGFR and thereby trigger downstream signaling pathways other kinases in cancer cells. The protein profile cells exposed NBD some extent...
In a context of volatile organic compound photodecomposition, we have addressed TiO2-based macroscoscpic fiber generation. We extruded hybrid sols amorphous titania nanoparticles, latex and nonionic surfactant (Tergitol) as structure-directing agents into poly(vinyl alcohol) (PVA) solution bearing salts acting flocculating medium. The resulting nanocomposite TiO2/latex/PVA macroscopic fibers were thermally treated in air to open porosity by removal while generating the photocatalytically...
Abstract The design of photoactive polymer substrates producing singlet oxygen under visible light irradiation has great technological potential. Aqueous dispersion novel core–shell particles was synthesized by surfactant‐free reversible addition–fragmentation chain transfer (RAFT) emulsion polymerization n ‐butyl acrylate. surface the nanoparticles is directly decorated thanks to polymerization‐induced self‐assembly process using a hydrophilic macromolecular agent (macro‐CTA) functionalized...
Miniemulsion copolymerization of vinyl acetate, <italic>N</italic>-vinylcaprolactam, benzyl Rose Bengal and divinyl adipate to synthesize switchable photosensitizer-grafted polymer colloids for interfacial photooxygenation reactions.
Abstract The photocatalytic properties of titanium dioxide depend not only on its electronic properties, but also the material size and shape, which can increase interactions between reactants catalyst. Most studies to date show that reducing particle down nanoscale increases efficiency, as a result higher surface volume ratio because larger proportion is actually irradiated by light. We demonstrate multiscale shape design, integrates roughness, 1D processing orientation, favor in solid–gas...