A5016401880- Polymer Surface Interaction Studies
- Corrosion Behavior and Inhibition
- Bone Tissue Engineering Materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Molecular Junctions and Nanostructures
- Force Microscopy Techniques and Applications
- Collagen: Extraction and Characterization
- Electrospun Nanofibers in Biomedical Applications
- Electrochemical Analysis and Applications
- Supramolecular Self-Assembly in Materials
- Electrochemical sensors and biosensors
- Surface Chemistry and Catalysis
- Calcium Carbonate Crystallization and Inhibition
- Nanofabrication and Lithography Techniques
- Graphene and Nanomaterials Applications
- 3D Printing in Biomedical Research
- Adhesion, Friction, and Surface Interactions
- Advanced biosensing and bioanalysis techniques
- Quantum Dots Synthesis And Properties
- Silk-based biomaterials and applications
- Metal Extraction and Bioleaching
- Metal and Thin Film Mechanics
- Marine Biology and Environmental Chemistry
- Cellular Mechanics and Interactions
- Nanoparticle-Based Drug Delivery
Laboratoire de Réactivité de Surface
2016-2025
Centre National de la Recherche Scientifique
2015-2024
Sorbonne Université
2015-2024
Biomécanique et Bioingénierie
2008-2024
Université de Technologie de Compiègne
2007-2024
Délégation Paris 6
2018-2020
Laboratoire Roberval
2005-2019
UPMC Health System
2015
Canadian Nautical Research Society
2015
Université Paris Cité
2014
In this work the mechanism of (3-aminopropyl)triethoxysilane (APTES) interaction with silicon surfaces is investigated at molecular level. We studied influence experimental parameters such as time, temperature, and concentration on quality APTES layer in terms chemical properties, morphology, stability aqueous medium. This was achieved using a highly sensitive IR mode recently developed, grazing angle attenuated total reflection (GA-ATR). technique provides structural information formed...
Adsorption of proteins at interfaces is an ubiquitous phenomenon prime importance. Layers poly(ethylene oxide) (PEO) are widely used to repel proteins. Conversely, were shown adsorb deeply into brushes poly(acrylic acid) (PAA), and their subsequent partial release could be triggered by a change pH and/or ionic strength (I). Mixed these polymers thus promising candidates tune protein adsorption onto new smart surfaces. In this work, the synthesis such mixed was performed based on "grafting...
Preparing thin films of molecular polymetallic materials remains one the current limitations in implementation complexes into devices. The hurdle is tackled here using an electrochemical route for depositing cyanido-bridged complex {Tl⊂[FeII(2-TPhTp)(CN)3]4[CoIII(Tp)]3[CoII(Tp)]}(1) (where 2-TPhTp = [4-(2-thienyl)Phenyl]tris(pyrazol-1-yl)borate; and Tp hydrotris(pyrazol-1-yl)borate), functionalized with thiophene groups, on conductive surface (Pt/mica). Cyclic voltammograms show that pattern...
We investigate the mechanism of polyelectrolyte multilayer (PEM) assembly in nanoporous templates with a view to synthesizing nanotubes or nanowires under optimal conditions. For this purpose, we focus on effect parameters related geometrical constraints (pore diameter), size macromolecules (their molar mass and ionic strength), interaction between pore walls adsorbed chains (modulated by strength). Our results reveal existence two regimes PEM growth: (i) first regime is comparable that...
Nanotubes made from a fibrillar protein, namely, collagen, were fabricated by template-based method combined with layer-by-layer (LbL) deposition. The ability to incorporate collagen in LbL multilayered film was first demonstrated situ quartz crystal microbalance and ex ellipsometry on flat model substrate, using poly(styrene sulfonate) (PSS) as polyanion. Collagen-based nanotubes then alternately immersing polycarbonate membrane, used template, PSS aqueous solutions. Direct evidence for...
We investigated the mechanism of enzyme immobilization on silanized surfaces through coupling agents (cross-linkers) in order to understand role these molecules interfacial processes and their effect catalytic activity. To this end, we used a model multimeric (G6PDH) several cross-linking with different chemical properties, including nature end-group (-NCO, -NCS, -CHO), connecting chain (aliphatic vs aromatic), geometrical constraints (meta para-disubstituted aromatics). There did not seem...
Water stable Pd-NPs prepared in an eco-friendly manner enable highly efficient catalysis of 6 organic reactions aqueous media with quantities Pd down to the ppm level and high turnover frequencies.
The aim of this work was to create patterned surfaces for localized and specific biochemical recognition. For purpose, we have developed a protocol orthogonal material-selective surface modifications microfabricated composed SiO2 areas (100 μm diameter) surrounded by Au. spots were chemically modified sequence reactions (silanization using an amine-terminated silane (APTES), followed amine coupling biotin analogue biospecific recognition) achieve efficient immobilization streptavidin in...
The adsorption of a globular protein on chemically well controlled surfaces was investigated in order to correlate its orientation the surface properties. To this end, three different alkyl thiols, differing by their end group (−COOH, −CH3, and −NH2), were used build up self-assembled monolayers (SAMs) gold substrates. β-Lactoglobulin (βLG) then adsorbed these SAMs immersion phosphate buffer solution. modification with thiols subsequent proteins characterized ex situ polarization modulated...
Titanium dioxide (TiO2) has been widely used in many nanotechnology areas including nanomedicine, where it could be proposed for the photodynamic and sonodynamic cancer therapies. However, TiO2 nanoformulations have shown to toxic living cells. In this article, we report development of a new delivery system, based on nontoxic nanoparticles, further conjugated with monoclonal antibody against novel easily accessible tumor marker, e.g., Kv 11.1 potassium channel. We synthesized, by simple...
We describe the construction, characteristics and interaction with proteins of stimuli-responsive nanostructured films prepared by layer-by-layer assembly PAA-<italic>b</italic>-PNIPAM PAH.