Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 7, Pages 3322-3325Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja209981n
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Funding
- National Natural Science Foundation for Distinguished Youth Scholars of China [21025310]
- National Natural Science Foundation of China [21003026, 20973047, 91027011]
- National Research Fund for Fundamental Key Project [2009CB930401]
- Chinese Academy of Sciences
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Reversible plasmonic circular dichroism (CD) responses are realized for the first time based on temperature-dependent assembly and disassembly of Au nanorod (Au NR) and DNA hybrids. Compared with the conventional UV-vis absorption spectra, the changes in both intensity and line shape of plasmonic CD signals are much more pronounced, leading to a preliminary detection limit of DNA as low as 75 nM. The mechanism and influence factors of reversible plasmonic CD responses are explored.
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