Title : Protein self-assembly for the design of bioinspired materials
Speaker’s name and lab : Charlotte VENDRELY
-ERRMECe, I-MAT FD4122, CY Université Cergy Paris, MIR, rue Descartes, 95000 Neuville sur Oise Cedex, France.
-LMGP, CNRS, UMR 5628, Université Grenoble Alpes, 3 Parvis Louis Néel, 38016 Grenoble, France.
Date / hour : January 21, 2021, 14h
Zoom Meeting informations: https://univ-grenoble-alpes-fr.zoom.us/j/99941892772?pwd=U3E3RHdaVGY3YTU5S05jbHkzeVY4UT09
************************************************************************
Abstract:
Understanding why some self-assembly properties have been kept or optimized over millions of years of evolution is a fundamental question in biology. This knowledge is also required to develop the use of artificial fibrous protein structures as functional materials. For instance, collagens and fibrin are used in different cell culture approaches; applications close to their original functions. We will present our work on other types of self-assembled proteins, in particular amyloid fibers. These self-assemblies, stabilized by simple weak bonds, are paradoxically highly resistant and represent a great source of inspiration for the development of artificial materials. Thus, they are used especially to create conductive nanowires. In addition to amyloid fibers, the high resistance of arthropod silks to tensile forces suggests their potential applications as material. Some arthropods produce also adhesive proteins whose adhesion mechanisms are based on their self-assembly on material surface to form glues very efficient in air and water. We will present our biomimetic approach to obtain proteins inspired form these natural glues in order to provide fundamental knowledge on these adhesives but also to develop environmentally friendly technologies for the treatment of material surfaces.