Discrete nanostructures of quantum dots/Au with DNA

被引:220
作者
Fu, AH
Micheel, CM
Cha, J
Chang, H
Yang, H
Alivisatos, AP [1 ]
机构
[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA
关键词
D O I
10.1021/ja046747x
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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. Copyright © 2003 American Chemical Society.
引用
收藏
页码:10832 / 10833
页数:2
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