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Nanofluidics in carbonaceous nanostructures: Molecular drag, sensing, filtration, and self-assembly

Speaker: 
Petr Král (University of Illinois at Chicago, USA)
Date: 
Tue, 28/10/2014 - 2:00pm to 3:00pm
Location: 
S16-06 (Graphene Theory Common Seminar Room)
Host: 
Slaven Garaj
Event Type: 
Seminars

Abstract

In this talk, we review many nanofluidic phenomena predicted and observed at the interfaces of carbonaceous nanostructures [1]. First, we discuss material drag effects around nanotubes and graphene induced by electronic currents, coupling of moving molecules, and mechanical vibrations. Then, we describe electronic sensing of a fluid motion around such nanostructures. Ultrasensitive molecular sensing was also reported at graphene grain boundaries. In a similar way, molecules passing through graphene nanopores can be sensed electronically. These nanopores could be used in water purification, molecular filtration, and DNA sequencing. Finally, we describe the self-assembly of carbon nanostructures by water droplets and nanotubes, mention experiments with water confined between graphene layers, and discuss the formation of filled micelles on the surfaces of carbon nanotubes.

[1] P. Král and B. Wang, Material Drag Phenomena in Nanotubes, Chem. Rev. 113, 3372 (2013).

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