Synthesis of organo-silane functionalized nanocrystal micelles and their self-assembly.
We report a general method to synthesize gold nanocrystal micelles with organo-silane headgroups. The method involves encapsulation of monodisperse, hydrophobic gold nanocrystals within the core of a micelle of an amphiphilic silane precursor. Formation and stability of monodisperse gold NC micelles have been confirmed using UV-visible spectroscopy and transmission electron microscopy. Self-assembly of such nanocrystal micelles through siloxane hydrolysis and cross-linking leads to an ordered array with a face-centered-cubic mesostructure.
Fan
Hongyou
H
Advanced Materials Laboratory, Chemical Synthesis and Nanomaterials Department, Sandia National Laboratories, 1001 University Boulevard, Albuquerque, New Mexico 87106, USA. hfan@sandia.gov
Chen
Zhu
Z
Brinker
C Jeffrey
CJ
Clawson
Jacalyn
J
Alam
Todd
T
D003460:Crystallization; D018360:Crystallography, X-Ray; D006046:Gold / Q000737:chemistry; D008823:Micelles; D008958:Models, Molecular; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010316:Particle Size; D012821:Silanes / Q000737:chemistry*; D013499:Surface Properties
D008823:Micelles; D009942:Organometallic Compounds; D012821:Silanes; D006046:Gold