Electrostatic self-assembly of structured gold nanoparticle/polyhedral oligomeric silsesquioxane (POSS) nanocomposites

被引：54

作者：

Carroll, JB ^{[1
]}

Frankamp, BL ^{[1
]}

Srivastava, S ^{[1
]}

Rotello, VM ^{[1
]}

机构：

[1] Univ Massachusetts, Dept Chem, Amherst, MA 01003 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2004年 / 14卷 / 04期

关键词：

D O I：

10.1039/b311423f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hybrid inorganic/organic composite materials composed of gold nanoparticles of varying size (1.5 and 6.8 nm) and polyhedral oligomeric silsesquioxane (POSS) units were created using electrostatic self-assembly. Carboxylic acid-functionalized mixed monolayer protected gold clusters (MMPCs) were mixed with trimethyl quaternary ammonium-functionalized POSS units, providing well-ordered aggregates. The aggregates were characterized with transmission electron microscopy (TEM) and small angle X-ray scattering (SAXS), revealing an increase in average interparticle spacing upon assembly with POSS. This increase in spacing was shown to influence the surface plasmon resonance band of the larger 6.8 nm An nanoparticles as characterized by UV/Vis spectroscopy.

引用

页码：690 / 694

页数：5

共 39 条

[1] A CHEMICALLY AND ELECTROCHEMICALLY SWITCHABLE MOLECULAR SHUTTLE [J].