TY - GEN
T1 - Rippled mixed monolayer protected nanoparticles with charged ligands
AU - Chen, Suelin
AU - Uzun, Oktay
AU - Jackson, Alicia
AU - Stellacci, Francesco
PY - 2008/9/19
Y1 - 2008/9/19
N2 - We present here the first molecular-level resolution STM images of water-soluble nanoparticles with a sulfonate group. We show that when mixed self-assembled monolayers (SAMs) of mercaptoundecasulfonic acid (MUS) and octanethiol (OT) in a 1:1 ratio are assembled on gold nanoparticles, they spontaneously phase-separate into highly ordered ribbon-like phases ("ripples"). These MUS:OT 1:1 nanoparticles have unprecedented solubility in aqueous environments and are thus ideal for use in biological applications. Their water solubility and net negative charge prevented traditional sample preparation methods from being viable and we present new methods for characterization. This new family of water- soluble nano-structured nano-materials may demonstrate new properties due to this novel and unique morphology in their ligand shell.
AB - We present here the first molecular-level resolution STM images of water-soluble nanoparticles with a sulfonate group. We show that when mixed self-assembled monolayers (SAMs) of mercaptoundecasulfonic acid (MUS) and octanethiol (OT) in a 1:1 ratio are assembled on gold nanoparticles, they spontaneously phase-separate into highly ordered ribbon-like phases ("ripples"). These MUS:OT 1:1 nanoparticles have unprecedented solubility in aqueous environments and are thus ideal for use in biological applications. Their water solubility and net negative charge prevented traditional sample preparation methods from being viable and we present new methods for characterization. This new family of water- soluble nano-structured nano-materials may demonstrate new properties due to this novel and unique morphology in their ligand shell.
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U2 - 10.1021/bk-2008-0996.ch005
DO - 10.1021/bk-2008-0996.ch005
M3 - Conference contribution
AN - SCOPUS:84905575067
SN - 9780841269699
VL - 996
T3 - ACS Symposium Series
SP - 55
EP - 62
BT - ACS Symposium Series
PB - American Chemical Society
ER -