title: Chemically directed immobilization of nanoparticles onto gold substrates for orthogonal assembly using dithiocarbamate bond formation.
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.
authors.affiliation: Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA.
authors.forename: Myoung-Hwan
authors.initials: MH
authors.lastname: Park
authors.forename: Xuexin
authors.initials: X
authors.lastname: Duan
authors.forename: Yuval
authors.initials: Y
authors.lastname: Ofir
authors.forename: Brian
authors.initials: B
authors.lastname: Creran
authors.forename: Debabrata
authors.initials: D
authors.lastname: Patra
authors.forename: Xing Yi
authors.initials: XY
authors.lastname: Ling
authors.forename: Jurriaan
authors.initials: J
authors.lastname: Huskens
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Rotello