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Article
Chemically Directed Immobilization of Nanoparticles onto Gold Substrates for Orthogonal Assembly Using Dithiocarbamate Bond Formation
ACS Applied Materials & Interfaces (2010)
  • MH Park
  • XX Duan
  • Y Ofir
  • B Creran
  • D Patra
  • XY Ling
  • J Huskens
  • VM Rotello
Abstract

Dithiocarbamate-mediated bond formation combined with soft lithography was used for the selective immobilization of amine-functionalized silica nanoparticles on gold substrates. The available amine groups on the upper surface of the immobilized silica nanoparticles were further utilized for postdeposition of additional materials including particles, dyes, and biomolecules. The robustness of dithiocarbamate-mediated immobilization enables orthogonal assembly on surfaces via selective removal of the masking thiol ligands using iodine vapor etching followed by further functionalization.

Keywords
  • dithiocarbamate,
  • orthogonal assembly,
  • nanoparticles,
  • immobilization,
  • iodine etching
Disciplines
Publication Date
February 16, 2010
Publisher Statement
DOI: 10.1021/am9009007
Citation Information
MH Park, XX Duan, Y Ofir, B Creran, et al.. "Chemically Directed Immobilization of Nanoparticles onto Gold Substrates for Orthogonal Assembly Using Dithiocarbamate Bond Formation" ACS Applied Materials & Interfaces Vol. 2 Iss. 3 (2010)
Available at: http://works.bepress.com/vincent_rotello/22/