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Colloidal Particles Coated and Stabilized by DNA-Wrapped Carbon Nanotubes

Published

Author(s)

Erik K. Hobbie, Barry J. Bauer, J S. Stephens, Matthew Becker, P M. McGuiggan, Steven Hudson, Haonan Wang

Abstract

Single-walled carbon nanotubes (SWNTs) are dispersed in water via wrapping with short segments of single-stranded DNA (ssDNA). Small-angle neutron scattering suggests that the aqueous SWNT suspensions are only marginally stable, and we exploit this to make hydrophillic colloidal particles coated and stabilized by the SWNT-ssDNA complex. Near-infrared fluorescence microscopydemonstrates the band-gap fluorescence of these SWNT-coated particles, suggesting potential routes to novel platforms and applications.
Citation
Nano Letters
Volume
21

Keywords

carbon nanotubes, DNA, nanoparticle surfactant

Citation

Hobbie, E. , Bauer, B. , Stephens, J. , Becker, M. , McGuiggan, P. , Hudson, S. and Wang, H. (2005), Colloidal Particles Coated and Stabilized by DNA-Wrapped Carbon Nanotubes, Nano Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852535 (Accessed February 24, 2024)
Created December 31, 2004, Updated October 12, 2021