Enhanced photothermal effect of plasmonic nanoparticles coated with reduced graphene oxide

Dong Kwon Lim, Aoune Barhoumi, Ryan G. Wylie, Gally Reznor, Robert S. Langer, Daniel S. Kohane

Research output: Contribution to journalArticlepeer-review

195 Citations (Scopus)

Abstract

We report plasmonic gold nanoshells and nanorods coated with reduced graphene oxide that produce an enhanced photothermal effect when stimulated by near-infrared (NIR) light. Electrostatic interactions between nanosized graphene oxide and gold nanoparticles followed by in situ chemical reduction generated reduced graphene oxide-coated nanoparticles; the coating was demonstrated using Raman and HR-TEM. Reduced graphene oxide-coated gold nanoparticles showed enhanced photothermal effect compared to noncoated or nonreduced graphene oxide-coated gold nanoparticles. Reduced graphene oxide-coated gold nanoparticles killed cells more rapidly than did noncoated or nonreduced graphene oxide-coated gold nanoparticles.

Original languageEnglish
Pages (from-to)4075-4079
Number of pages5
JournalNano Letters
Volume13
Issue number9
DOIs
Publication statusPublished - 2013 Sep 11
Externally publishedYes

Keywords

  • Cell Viability
  • Enhanced Photothermal Effect
  • Gold Nanorod
  • Gold Nanoshell
  • Plasmonic Nanoparticle
  • Reduced Graphene
  • r-GO Coated Gold Nanoparticle

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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