Wet chemical synthesis of high aspect ratio cylindrical gold nanorods

Nikhil R. Jana, Latha Gearheart, Catherine J. Murphy

Research output: Contribution to journalLetter

Abstract

Gold nanorods with aspect ratios of 4.6 ± 1.2, 13 ± 2, and 18 ± 2.5 (all with 16 ± 3 nm short axis) are prepared by a seeding growth approach in the presence of an aqueous miceller template. Citrate-capped 3.5 nm diameter gold particles, prepared by the reduction of HAuCl4 with borohydride, are used as the seed. The aspect ratio of the nanorods is controlled by varying the ratio of seed to metal salt. The long rods are isolated from spherical particles by centrifugation.

Original languageEnglish (US)
Pages (from-to)4065-4067
Number of pages3
JournalJournal of Physical Chemistry B
Volume105
Issue number19
DOIs
StatePublished - May 17 2001
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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