Sulfonic acid-functionalized golf nanoparticles: A colloid-bound catalyst for soft lithographic application on self-assembled monolayers

X. Li, V. Paraschiv, Jurriaan Huskens, David Reinhoudt

Research output: Contribution to journalArticleAcademicpeer-review

35 Citations (Scopus)

Abstract

In this report, we present a new lithographic approach to prepare patterned surfaces. Self-assembled monolayers (SAMs) of the acid-labile trimethylsilyl ether (TMS-OC11H22S)2 (TMS adsorbate) was formed on gold. 5-Mercapto-2-benzimidazole sulfonic acid sodium salt (MBS-Na+) was used as a ligand for gold nanoparticles. These monolayer-protected gold colloids (MPCs) were transformed into the catalytically active H+-form by ion exchange. This colloid-bound catalyst hydrolyzed the TMS adsorbate (TMS-OC11H22S)2 both in solution and when self-assembled on gold surfaces. Microcontact printing of the active colloid-bound catalyst on the preformed TMS SAM led to the deposition of the colloid onto the SAMs. After the catalyst nanoparticles were rinsed off, a patterned surface was created as shown by AFM.
Original languageEnglish
Pages (from-to)4279-4284
Number of pages6
JournalJournal of the American Chemical Society
Volume125
Issue number14
DOIs
Publication statusPublished - 2003

Keywords

  • IR-40877
  • METIS-215606

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