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FROM SiO2 TO Si AND SiC NANOPARTICLES FOR PHYSICAL-CHEMICAL APPLICATIONS
The research interest of my group is concentrated on preparation, characterization and application of organo-mineral nanostructured composites and lately nanoparticles and nanorods. Most of the research is conducted under collaboration with French colleagues.
The fist direction is preparation of porous high surface area materials by sol-gel technique (SiO2). Procedures for electrochemical preparation and chemical fictionalization of porous Si , and SiC were also developed.
Second direction is covalent immobilisation of organic molecules on the material surface. This direction is used to obtain microfluidic systems , catalytically active materials chemical sensors and adsorbents. We can control bonded group density and topology that has influence to material properties .
The third direction is characterisation of liquid-solid phase equilibrium, particularly in case of formation of metal complexes.
And finally – application of the materials in catalysis, analysis (including chromatography) and for environmental protection. Particularly we have shown that the modification of nanostructured silica by platinum nanofibers using the electro-assisted deposition allows the successful encapsulation of a biomolecules while keeping its biological activity. Some of our organo-silica composites demonstrated high catalytic activity. It was also shown that the porous silicon as well as SiC can be used as a platform for MILDI of small organic molecules. In our future planes are application of chemically modified SiC and nanodiamonds for development of drug delivery systems and optic micro-devises.
Ce séminaire est proposé par le laboratoire de Physique et d’étude des matériaux