A5106651407- Molecular Junctions and Nanostructures
- Advanced biosensing and bioanalysis techniques
- Surface Chemistry and Catalysis
- Polymer Surface Interaction Studies
- Advanced Biosensing Techniques and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Linguistics and Discourse Analysis
- Catalytic Processes in Materials Science
- Antimicrobial Peptides and Activities
- Analytical Chemistry and Sensors
- Biosensors and Analytical Detection
- Quantum Dots Synthesis And Properties
- Acoustic Wave Resonator Technologies
- Nanocluster Synthesis and Applications
- Force Microscopy Techniques and Applications
- Bacterial biofilms and quorum sensing
- Corrosion Behavior and Inhibition
- Antimicrobial agents and applications
- Gas Sensing Nanomaterials and Sensors
- Advanced Chemical Physics Studies
- Luminescence and Fluorescent Materials
- Polydiacetylene-based materials and applications
- Marine Biology and Environmental Chemistry
- Surface and Thin Film Phenomena
- Biotin and Related Studies
Centre National de la Recherche Scientifique
2012-2023
Sorbonne Université
2012-2023
Laboratoire de Réactivité de Surface
2012-2023
Université Paris Cité
2015-2023
Sorbonne Paris Cité
2015-2023
Université Sorbonne Paris Nord
2015-2023
Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques
2015-2023
Délégation Paris 6
2020
Institut de Chimie
2014-2015
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2010-2013
Increasing interest in bio-interfaces for medical, diagnostic, or biotechnology applications has highlighted the critical scientific challenge behind both understanding and control of protein-solid surface interactions. In this context, Account focuses on molecular-level characterization interactions peptides, ranging size from a few amino acids to long sequences, with metal oxide surfaces. Account, we attempt fill gap between well-known basic studies interaction single acid well-defined...
Protein A (PrA), mouse monoclonal anti-IgG antibody (SAb) and deglycosylated avidin (NAV) were adsorbed on gold surfaces to capture the model rabbit IgG build three immunosensing platforms. The assembling of immunosensors, their specificity, receptor accessibility monitored by polarization modulation reflection–absorption infrared spectroscopy (PM-RAIRS) quartz crystal microbalance with dissipation measurement (QCM-D) at each step. Combining these two techniques allows us compare both...
Surface nanostructuration was successfully achieved by binding the polyoxometalate (POM) (NBu4)3[PW11O39{(SiC6H4NH2)2O}] covalently onto planar gold surfaces. To do so, POMs functionalized with two terminal amino groups were synthesized and reacted a mercaptoundecanoic acid self-assembled monolayer adsorbed on gold. These amine-terminated POM macroanions proved to be remarkably efficient as nanostructuring agents. Using polarization-modulated infrared reflection absorption spectroscopy...
In this article, the detection of DNA hybridization taking advantage plasmonic properties gold nanostructures is described. The approach based on amplification wavelength shift a multilayered localized surface plasmon resonance (LSPR) sensor interface upon with nanorods and nanostars-labeled DNA. results in significant decrease limit from ≈40 nM as observed for unlabeled to 0.2 labeled molecules. Furthermore, band, characteristic DNA, different that LSPR interface. Indeed, next band at...
The adsorption of L-lysine on a Cu(110) surface has been investigated under UHV conditions from the sublimation crystalline phase. was characterized by Fourier transform reflection absorption infrared spectroscopy (FT-RAIRS) during exposure and Auger electron (AES). At room temperature, lysine molecules' geometry varies as function exposure. low coverage, molecules are adsorbed via oxygen atoms deprotonated carboxylate group nitrogen atom amino group. high close to monolayer, reorient be...
A new strategy aiming at the protection of metallic surfaces against growth biofilms is presented here. This work reports grafting primary amines by aminosilanization oxidized stainless steel followed chemical coupling glycosidase lysozyme from hen egg white using glutaraldehyde as homobifunctional cross-linking agent. Controlled characterization a surface X-ray photoelectron spectroscopy and Fourier transform infrared reflection−absorption each step enabled mode binding, coverage,...
The structure of undecanethiol self-assembled monolayers (SAMs) on Au(111) with −COOH and −OH tail groups has been characterized by combining experimental theoretical techniques. pure mixed 1:1 SAMs were investigated. It was found using polarization modulation infrared reflection−absorption spectroscopy, X-ray photoelectron spectroscopy (XPS), ab initio calculation methods that the chains adsorb via their S atom two different sites (one near atop another bridge site) surface inter-tail-group...
An antimicrobial peptide,(1) Magainin I (Mag), was grafted to a titanium oxide surface, via an antiadhesive poly(ethylene glycol) (PEG) cross-linker. The latter plays 2-fold part, being antiadhesive, and enabling the covalent immobilization of peptide. functionalization characterized at each step by reflection absorption infrared spectroscopy (RAIRS) X-ray photoelectron (XPS). properties PEG, antibacterial activity anchored I, were individually tested toward adsorption bovin serum albumin...