A5104727851- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Porphyrin and Phthalocyanine Chemistry
- Photodynamic Therapy Research Studies
- Aquaculture Nutrition and Growth
- Aquaculture disease management and microbiota
- Advanced oxidation water treatment
- Catalytic Processes in Materials Science
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Synthesis and properties of polymers
- Pickering emulsions and particle stabilization
- Isotope Analysis in Ecology
- Pharmaceutical and Antibiotic Environmental Impacts
- biodegradable polymer synthesis and properties
- Molecular Sensors and Ion Detection
- Innovations in Aquaponics and Hydroponics Systems
- Inorganic and Organometallic Chemistry
- Mesoporous Materials and Catalysis
- Ferrocene Chemistry and Applications
- Chemical Synthesis and Analysis
- Animal Nutrition and Physiology
- Synthesis and Properties of Aromatic Compounds
- Analytical Chemistry and Chromatography
- Chemical Synthesis and Reactions
Université de Pau et des Pays de l'Adour
2010-2024
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
2013-2024
Centre National de la Recherche Scientifique
2009-2024
IMT Mines Alès
2022-2024
Institut de Physique de Rennes
2015
Laboratoire de Chimie Théorique
2004-2005
Ludwig-Maximilians-Universität München
2004
Université Toulouse III - Paul Sabatier
1991-2004
Molécules d'Intérêt Biologique
2004
Laboratoire Hétérochimie Fondamentale et Appliquée
1999
With approximately 250 000 marine species, the ocean is a vast reservoir of biodiversity and an abundant biological resource natural polymers microorganisms producing biopolymer-degrading enzymes.
Photosensitizing materials made of organic dyes embedded in various supports are compared to usual supported TiO<sub>2</sub>-based photocatalysts.
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....
A new streptocyanine dye has been doped into monolithic silica gels with different porosities, characterized by nitrogen adsorption isotherms. Single-molecule tracking a wide-field fluorescence microscope is used to determine the diffusivity of in nanoporous network host. The majority molecules gel wider pores (22 nm) diffuse freely an average diffusion coefficient D = 4.7 × 10-9 cm2 s-1. Most those narrower (3 are trapped regions ranging size from 50 nmthe positioning accuracy setupup 200...
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...
We synthesized new cyanoaromatics, benzo[b]triphenylene-9,14-dicarbonitrile (DBTP) 1a and a graftable derivative, 9,14-dicyanobenzo[b]triphenylene-3-carboxylic acid (DBTP-COOH) 1b, easily prepared from commercial reagents. Their photosensitizing properties were investigated. Hybrid porous silica monoliths loaded with encapsulated or grafted 1b prepared, their adsorption, spectroscopic properties, as well stability, compared. Solvent-free, efficient oxidation of dimethylsulfide (DMS) was...
The cyanoanthracene derivative, benzo[b]triphenylene-9,14-dicarbonitrile (1) can be prepared readily with a graftable function while maintaining (1)O(2) photosensitizing properties comparable to those of the standard compound 9,10-dicyanoanthracene (DCA). In view high potential derivatives 1 for photooxidation reactions under heterogeneous conditions, we compared photophysical in solution DCA. pursuing comparison and DCA, observed small but significant changes vibronic bands electronic...
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...
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...
In order to graft cyanoaromatic molecules onto various inert supports, we designed two new cyanoanthracene derivatives of benzo[b]triphenylene-9,14-dicarbonitrile (DBTP, 1), which already demonstrated good photosensitizing properties. We synthesized 3-(N-hydroxypropyl)carboxamido-9,14-dicyanobenzo[b]triphenylene, 3 and 3-(N-N′-Boc-aminohexyl)carboxamido-9,14-dicyanobenzo[b]triphenylene, 4 compared their photophysical properties in acetonitrile relative those the parent compound 1 its...
Hybrid mesostructured thin films functionalised with organic photosensitiser molecules demonstrated high efficiency for the decontamination of polluted atmosphere via singlet oxygen production.
Various photosensitizers were grafted by conventional peptide coupling methods to functionalized silica with several macroscopic shapes (powders, films) or embedded in highly transparent and microporous xerogel monoliths. Owing the transparency free-standing shape of monoliths, transient species arising from irradiation PSs could be analyzed not strikingly different those observed solutions. The reactivity for either liquid-solid (α-terpinene oxygenation vs dehydrogenation) gas-solid...
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...