Discrete nanostructures of quantum dots/Au with DNA
Discrete nanostructures of quantum dots/Au with DNA
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DOI：
10.1021/ja046747x
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发表时间：
2004-09-08
影响因子：
15
通讯作者：
Alivisatos, AP
中科院分区：
文献类型：
--
作者：
Fu, AH;Micheel, CM;Alivisatos, AP
通过 DNA 杂交生成被离散数量的 Au 纳米颗粒包围的胶体 CdSe/ZnS 核/壳量子点 (QD) 纳米结构，并通过凝胶电泳纯化。 TEM 分析的统计数据表明设计结构的产量很高。 Au颗粒和QD之间的距离、中心QD周围的Au数量以及Au和QD的尺寸都可以调节。诸如此类的合理设计结构对于研究半导体和金纳米颗粒之间的物理相互作用以及开发更高效的纳米探针具有巨大的前景。
Nanostructures of colloidal CdSe/ZnS core/shell quantum dots (QDs) surrounded by a discrete number of Au nanoparticles were generated via DNA hybridization and purified by gel electrophoresis. Statistics from TEM analysis showed a high yield of designed structures. The distance between Au particles and QD, the number of Au around the central QD, and the size of Au and QD can be adjusted. Rationally designed structures such as these hold great promise for researching the physical interactions between semiconductor and Au nanoparticles and for developing more efficient nanoprobes.