Simulation of electrokinetic transport in silica nanochannels

Sony Joseph, Aveek N. Chatterjee, N. R. Aluru

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Using a hierarchical multiscale methodology to compute ion transport in nanoscale silica channels, we show that the partial charges from quantum calculations significantly alter transport properties and I-V characteristics of electrolytes in confined geometries. Molecular dynamics simulations performed with the partial charges computed from quantum calculations show a good agreement with recent experimental results for an α- quartz-water interface. Though net surface charge density is zero, electroosmotic flow is observed because of oscillations in ionic density that creates a local net charge density.

Original languageEnglish (US)
Title of host publicationMicro Total Analysis Systems - Proceedings of MicroTAS 2005 Conference
Subtitle of host publication9th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherTransducer Research Foundation
Pages733-735
Number of pages3
ISBN (Print)0974361119, 9780974361116
StatePublished - 2005
Event9th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2005 - Boston, MA, United States
Duration: Oct 9 2005Oct 13 2005

Publication series

NameMicro Total Analysis Systems - Proceedings of MicroTAS 2005 Conference: 9th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Volume1

Other

Other9th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2005
Country/TerritoryUnited States
CityBoston, MA
Period10/9/0510/13/05

Keywords

  • Electro-osmosis
  • Molecular dynamics
  • Multiscale
  • Quantum charges

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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