期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 39, 页码 15276-15279出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja205907y
关键词
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资金
- NSFC [20825101, 21001072, 91027004]
- NHTPC [2011AA03A407]
- Shanghai Sci. Tech. Comm. [11XD1400200, 1052nm03400, IRT0911, SLADP (B108)]
Chromophoric iridium(III) complex-coated NaYF4: 20%Yb, 1.6%Er, 0.4%Tm nanocrystals are demonstrated as a ratiometric upconversion luminescence (UCL) probe for highly selective detection of cyanide anion and bioimaging of CN- in living cells through inhibition of the energy transfer from the UCL of the nanocrystals to the absorbance of the chromophoric complex. The UCL probe provides a very low detection limit of 0.18 mu M CN- in the aqueous solution.
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