Colloidal Particles Coated and Stabilized by DNA-Wrapped Carbon Nanotubes

Published

January 1, 2005

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

Pub Type

Journals

Download Paper

Local Download

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 April 19, 2024)