期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 39, 页码 15284-15287出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja205712a
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资金
- National Basic Research Program of China [2007CB935900]
- National Natural Science Foundation of China [91027046, 20973047, 91027011]
- National Natural Science Foundation for Distinguished Youth Scholars of China [21025310]
- National Research Fund for Fundamental Key Project [2009CB930400]
- China-Korea Joint Research Project [2010DFA51700]
- Chinese Academy of Sciences
A novel strategy of dual steric hindrance, which was obtained by Janus modification of gold nanoparticles (Au NPs) and volume exclusion of DNA, was adopted to prepare mono-DNA-modified Au NPs. The yield of mono-DNA-functionalized Au NPs significantly improved from 44 to 70% in the reaction between Au NPs and thiolated DNA. Furthermore, the specificity of mono-DNA-functionalized Au NPs was enhanced from 57 to 95%. The as-prepared Au NPs without postsynthetic treatment showed good controllability in self-assembly fabrication of complex nanostructures.
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