期刊
ANALYST
卷 137, 期 20, 页码 4651-4653出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2an35777a
关键词
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资金
- National Natural Science Foundation of China [20975083]
- Municipal Science Foundation of Chongqing City [CSTC-2008BB4013]
- 211 Project of Southwest University
A new room-temperature phosphorescence (RTP) mercury ions sensor has been developed based on cetyltrimethylammonium bromide-capped Mn-doped ZnS quantum dots (CTAB/Mn-ZnS QDs) and label-free thymine (T)-rich aptamer. The formed T-Hg2+-T dsDNA can linearly quench the RTP of Mn-ZnS QDs through electron transfer and aggregation effect, and give a detection limit of 1.5 nM.
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