Iridium(III) Complex-Coated Nanosystem for Ratiometric Upconversion Luminescence Bioimaging of Cyanide Anions
Iridium(III) Complex-Coated Nanosystem for Ratiometric Upconversion Luminescence Bioimaging of Cyanide Anions
复制标题
用于氰化物阴离子比率上转换发光生物成像的铱（III）复合物涂层纳米系统
DOI：
10.1021/ja205907y
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发表时间：
2011-10-05
影响因子：
15
通讯作者：
Li, Fuyou
中科院分区：
文献类型：
--
作者：
Liu, Jinliang;Liu, Yi;Li, Fuyou
研究了NaYF 4：20%Yb，1.6%Er，0.4%Tm纳米晶体的上转换发光（UCL）特性，通过抑制纳米晶体的UCL向发色络合物吸收的能量转移，实现了对活体细胞中CN-的高选择性检测和生物成像。UCL探针提供了一个非常低的检测限为0.18 μ M CN-在水溶液中。
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.