报告人: Eric Grelet教授 (法国国家科学研究中心(CNRS) 高级研究员,法国波尔多第一大学 教授)
摘要: Filamentous viruses with their features like outstanding monodispersity and their ability to self-organize into ordered structures motivate the strong interest they have raised as model systems for soft condensed matter. Aqueous suspensions of these viruses form a variety of self-organized structures, whose general behavior can be explained in terms of a few parameters, namely the packing density and the rod length over diameter ratio.We will show recent experimental investigations in the phase behavior of such virus suspensions including self-diffusion experiments where viral particles have been visualized at the single particle scale thanks to fluorescence microscopy. We will also demonstrate the role of topological defects, such as screw dislocations, in the chirality transfer from particle to supramolecular structure level during the self-assembly process [4,5]. Finally, recent results on the chemical functionalization of the phages will be shown, paving the way of new building blocks for self-assembled materials.