Laboratoire Multi Matériaux et Interfaces

The main contribution of LMI in the LABEX 2020-2024 program will be in touch with the enhancement of LABEX skill and know-hows in surface functionalization by chemical and physico-chemical approaches, mainly in combination with multiscale surface texturation induced by laser processes. Indeed, multifunctional properties of surfaces require both chemical and topographical optimization and characterization for most of applications investigated in the LABEX, mainly in optics and photonics, physico-chemistry, biology, mechanics and tribology.

LMI has already worked with scientists belonging to laboratories members of the LABEX, but never in the context of LABEX projects: LabHC (Au nanoparticles in TiO2, Sol Gel) and LTDS (Biosurfaces, wetting, interface reactivity).

LMI expertise for LABEX 2020-2024 will be:

• inorganic and organics OD (nanoparticles), 1D (nanowires, nanotubes) and 2D (nanosheets) synthesis and incorporation in various of materials, including dense or porous ones, by dedicated techniques including colloidal synthesis, sol-gel, hydrothermal, PECVD, atomic or molecular layer deposition (ALD, MLD), electrodeposition, spray-pyrolyse and 3D-printing). Coupling of such chemical functionalization with surface multiscale laser texturation is paramount for next generation of engineering surfaces.
• Multiscale surface probing, including wetting and electrowetting investigations to study electronic transfer such as between incorporated nanoparticles and semi-conductive matrix.
• Design and synthesis of functional coatings by polymer route (sol-gel, polymer derived ceramics)
• Surface property investigations in protective, mechanical, luminescent, photorefractive, antibacterial, photo-oxydative surfaces.
• In collaboration with LMI researchers belonging to the Faculty of Odontology UCB Lyon 1, investigation of relationships between chemical / laser surface functionalization and bio-properties of paradental materials, including bioactive coatings on dental implants, restauration of dental substances, resorbable devices. Study may be performed up to Axis 4 “Innovative and Integrated Surfaces and Processes” of LABEX 2020-2024, based on experimental in vitro simulation of mastication capabilities in the Faculty of Odontology.