Chirality separation of single walled carbon nanotube using microfluidic

C. S. Han, D. H. Shin, J. E. Kim, H. C. Shim, Junmo Kang, S. Baek

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

Abstract

Highly pure metallic single-walled carbon nanotubes were continuously extracted from a mixture of semiconducting and metallic species using a non-destructive, scalable method. Two laminar streams were generated in an H-shaped microfluidic channel with two inlets and two outlets. The flow conditions were carefully controlled to minimize diffusive and convective transport across the boundary between the two flows. Dielectrophoretic force from the embedded electrode at the junction extracted metallic nanotubes from a stream of nanotube suspension toward the other stream of buffer solution without nanotubes. The highly pure metallic and enriched semiconducting nanotubes were obtained simultaneously at each outlet using this novel approach. Excellent selectivity was verified by electrical transport measurement, absorption, and Raman spectroscopic analysis.

Original languageEnglish
Title of host publicationTechnical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
Pages414-417
Number of pages4
Publication statusPublished - 2009
Externally publishedYes
EventNanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling - 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009 - Houston, TX, United States
Duration: 2009 May 32009 May 7

Publication series

NameTechnical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
Volume3

Other

OtherNanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling - 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009
CountryUnited States
CityHouston, TX
Period09/5/309/5/7

Keywords

  • Carbon nanotube
  • Chiral separation
  • Dielectrophoresis
  • Microfluidics chip

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering
  • Biomaterials

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  • Cite this

    Han, C. S., Shin, D. H., Kim, J. E., Shim, H. C., Kang, J., & Baek, S. (2009). Chirality separation of single walled carbon nanotube using microfluidic. In Technical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009 (pp. 414-417). (Technical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009; Vol. 3).