Reactions of alkyl-radicals with gold and silver nanoparticles in aqueous solutions

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46 Scopus citations

Abstract

Silver and gold nanoparticles are very efficient catalysts for the dimerization of methyl-radicals in aqueous solutions. The rate constants for the reaction of methyl-radicals with the gold and silver nanoparticles were measured and found to be 3.7 × 108 M-1 s -1 and 1.4 × 109 M-1 s-1, respectively. The results thus suggest that alkyl-radicals, also not reducing ones, are scavenged by these nanoparticles. This might explain the role, if such a role exists, of these nanoparticles in medical applications.

Original languageEnglish
Pages (from-to)3552-3556
Number of pages5
JournalPhysical Chemistry Chemical Physics
Volume8
Issue number30
DOIs
StatePublished - 4 Aug 2006

ASJC Scopus subject areas

  • Physics and Astronomy (all)
  • Physical and Theoretical Chemistry

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