Nanotech 2006 Vol. 3
Nanotech 2006 Vol. 3
Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 3

MEMS, NEMS & Sensing Chapter 3

Dielectrophoretic ratchets for linear and rotary nanomotors

Authors: M.P. Hughes and R.D. Astumian

Affilation: University of Surrey, United Kingdom

Pages: 377 - 380

Keywords: nanomotor, dielectrophoresis, ratchet, simulation

Abstract:
Dielectrophoresis (DEP) is a phemomenon of induced particle motion in non-uniform electric fields. In this paper, we will describe how the phenomenon can be used to design electrokinetic ratchet devices to provide both linear and rotary motion. Such devices exploit Brownian motion through the imposition of an asymmetrical potential energy field, to provide motion. Since Brownian motion is a prerequisite, such devices are most applicable to the transport of nanoparticles. In this paper, we present the results of modelling of uch devices capable of linear translation, and of particular novelty, rotary motion and show the torque of the rotary motor is of the order of that generated by a bacterial motor.

Dielectrophoretic ratchets for linear and rotary nanomotors

ISBN: 0-9767985-8-1
Pages: 913
Hardcopy: $119.95