Formation of spherical nanostructures by the controlled aggregation of gold colloids
Formation of spherical nanostructures by the controlled aggregation of gold colloids
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DOI：
10.1021/la053126o
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发表时间：
2006-03-28
期刊：
影响因子：
3.9
通讯作者：
Brust, M
中科院分区：
文献类型：
--
作者：
Hussain, I;Wang, ZX;Brust, M
通过在金-二硫醇摩尔比的限定范围内使用烷二硫醇交联胶体颗粒，容易地获得5-8 nm金胶体在甲苯中的尺寸均匀的球形组装体的稳定悬浮液。组装体非常稳定，并且在甲苯中保持悬浮数月而没有显著的聚集。通过加入乙醇，这些多孔金球可以进一步组织成分级组装的相对线性的链。
Stable suspensions of size-uniform spherical assemblies of 5-8 nm gold colloids in toluene are readily obtained by cross linking the colloidal particles using alkanedithiols within a defined range of gold-dithiol molar ratios. The assemblies are very stable and remain suspended in toluene for several months without significant aggregation. These porous gold spheres can be further organized into hierarchically assembled relatively linear chains by the addition of ethanol.