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