Investigation of Patchiness on Tip-Selectively Surface-Modified Gold Nanorods

Dániel P. Szekrényes, Szilárd Pothorszky, Dániel Zámbó, Zoltán Osváth, András Deák

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

It is shown that scanning-probe and optical measurements performed on individual gold particles provide direct experimental evidence on the inhomogeneous ligand distribution of tip-selectively cysteamine-modified gold nanorods. At higher (10-2 mM) cysteamine concentration, a well-defined patch is formed at the tips of 115 × 55 nm gold nanorods. While at lower cysteamine concentration binding of the cysteamine still takes place at the rod tips, it only provides a partial coverage, allowing other thiol molecules to bind at the rod tip. The findings allow for a more rational design of functional patchiness at the nanoparticle level.

Original languageEnglish
Pages (from-to)1706-1710
Number of pages5
JournalJournal of Physical Chemistry C
Volume122
Issue number3
DOIs
Publication statusPublished - Jan 25 2018

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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