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Self-assembly of functional superstructures: from graphene origami to nanoparticle membranes
2010-06-24     Text Size:  A

Institute of Theoretical Physics
Chinese Academy of Sciences
学术报告
Title
题目
Self-assembly of functional superstructures: from graphene origami to nanoparticle membranes
Speaker
报告人
Dr. Petr Král
Department of Chemistry, University of Illinois at Chicago
Date
日期
2010-06-24 PM 14:30 Thursday
Venue
地点
Conference Hall 322, ITP/理论物理所322报告厅
Abstract
摘要

First, we demonstrate by molecular dynamics simulations that water nanodroplets can activate and guide folding of planar graphene nanostructures. Nanodroplets can induce rapid bending, folding, sliding, rolling, and zipping of graphene nanostructures, which can lead to their self-assembly into sandwiches, capsules, knots, and rings [1]. Next, we show that graphene ribbons can wrap in complex but controllable ways on the surfaces of nanostructures and in their interiors [2]. We continue by discussing our coarse-grained molecular dynamics simulations of graphene sheet insertion in the hydrophobic interior of biological membranes formed by amphiphilic phospholipid molecules [3]. The formed superstructures should allow building of novel bio-electronic systems. Finally, we model the self-assembly of nanoparticle monolayers inside biological membranes [4], and describe also self-supporting nanoparticle membranes observed in recent experiments.
[1] N. Patra, B. Wang, and P. Král, Nano Lett. 9, 3766 (2009);
highlighted: Nature 462, 658 (2009).
[2] N. Patra, Y. Song and P. Král, in preparation.
[3] A. Titov, P. Král, and R. Pearson, ACS Nano 4, 229 (2010).
[4] A. Titov, H. Chan, and P. Král. in preparation

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