Colloidal particles coated and stabilized by DNA-wrapped carbon nanotubes.

Journal Article (Letter)

Single-walled carbon nanotubes (SWNTs) are dispersed in water via wrapping with short segments of single-stranded DNA (ssDNA). Small angle neutron scattering suggests a power-law exponent that is consistent with clustered nanotubes and hence marginal stability. The SWNT-ssDNA complex is used to stabilize dispersions of hydrophilic colloidal particles with the nanotubes adhered to the surface of the colloids. Near-infrared fluorescence microscopy demonstrates the interfacial band-gap fluorescence of these SWNT-coated particles, suggesting potential routes to novel platforms and applications.

Full Text

Duke Authors

Cited Authors

  • Hobbie, EK; Bauer, BJ; Stephens, J; Becker, ML; McGuiggan, P; Hudson, SD; Wang, H

Published Date

  • November 2005

Published In

Volume / Issue

  • 21 / 23

Start / End Page

  • 10284 - 10287

PubMed ID

  • 16262277

Electronic International Standard Serial Number (EISSN)

  • 1520-5827

International Standard Serial Number (ISSN)

  • 0743-7463

Digital Object Identifier (DOI)

  • 10.1021/la051827f


  • eng