Optical manipulation of neutral nanoparticles suspended in a microfluidic channel

Document Type

Article

Publication Date

5-1-2006

Abstract

An optical method to deterministically manipulate nanosized particles in suspensions within confined microfluidic devices is introduced. We show that under appropriate conditions strong dielectrophoretic forces several orders of magnitude larger than the Brownian force can be generated using an external optical actuation. A self-consistent coupled point-dipole model that includes the redistribution of charges on the channel boundaries allows us to specify the underlying mechanisms and estimate the optical forces experienced by a nanoparticle. © 2006 American Institute of Physics.

Identifier

33646859054 (Scopus)

Publication Title

Journal of Applied Physics

External Full Text Location

https://doi.org/10.1063/1.2191572

ISSN

00218979

Issue

9

Volume

99

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