Modeling the electrokinetics of nanoparticles for controlled assembly

Michael D. Vahey, Robert J. Barsotti, Ryan Wartena, Yet Ming Chiang, Francesco Stellacci, Joel Voldman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a predictive framework for the controlled assembly of nanoparticles onto the surface of small (15 - 150 nm) electrode gaps using the dielectrophoretic (DEP) force. By combining Brownian dynamics (BD) simulations with continuum descriptions for the spatial distributions of nanoparticles, we arrive at a concise analytic description for the number of particles assembled as a function of the applied voltage, nanoparticle properties, and geometric parameters, such as the size of the electrode gap. Our model is predictive and successfully describes the presence of a voltage threshold, below which no assembly is observed.

Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007
EditorsJean-Louis Viovy, Patrick Tabeling, Stephanie Descroix, Laurent Malaquin
PublisherChemical and Biological Microsystems Society
Pages991-993
Number of pages3
ISBN (Electronic)9780979806407
StatePublished - 2007
Event11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007 - Paris, France
Duration: Oct 7 2007Oct 11 2007

Publication series

NameProceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007

Conference

Conference11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007
Country/TerritoryFrance
CityParis
Period10/7/0710/11/07

Keywords

  • Brownian dynamics simulation
  • Dielectrophoresis
  • Nanoparticles

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