Detection of radon with biosensors based on the lead(II)-induced conformational change of aptamer HTG and malachite green fluorescence probe

2018 ◽  
Vol 195 ◽  
pp. 60-66 ◽  
Author(s):  
Shiya Li ◽  
Hongwen Liu ◽  
Guiying Yang ◽  
Shimeng Liu ◽  
Ran Liu ◽  
...  
2018 ◽  
Vol 411 (2) ◽  
pp. 537-544 ◽  
Author(s):  
Hui Ran ◽  
Zheng-Zhong Lin ◽  
Qiu-Hong Yao ◽  
Cheng-Yi Hong ◽  
Zhi-Yong Huang

2007 ◽  
Vol 66 (4-5) ◽  
pp. 1323-1326 ◽  
Author(s):  
Zhi-Jun Wang ◽  
Lie-Xiang Ren ◽  
Ya-Qin Zhao ◽  
Guo-Ting Li ◽  
Ai-Hua Liang ◽  
...  

2019 ◽  
Vol 73 (7) ◽  
pp. 794-800 ◽  
Author(s):  
Ya Xie ◽  
Liqiang Yan ◽  
Jianping Li

A simple coumarin-based Schiff base (probe L) was successfully developed. It showed strong green fluorescence emission at 527 nm with a 70.3% of fluorescence quantum efficiency (ΦF). However, after the addition of common metal ions, probe L can only combine with Cu2+ ions and displayed significant fluorescence quenching of > 96.2% (ΦF = 2.7%) due to the paramagnetic quenching action from Cu2+. Conversely, by the coordination action of cysteine (Cys) and histidine (His), the quenching fluorescence of the complex (L-Cu2+) between probe L and Cu2+ ions was recovered mostly because the Cys and His can usurp Cu2+ of L-Cu2+ and led to the liberation of probe L. Based on the fluorescence changes of probe L with the actions of Cu2+, Cys, and His, an on–off–on reversible fluorescence probe for sensitive and specific monitoring Cu2+, Cys, and His has been prepared. More importantly, the probe L and L-Cu2+ ensemble can be used, respectively, to test Cu2+ and Cys/His in live cells and human urine samples with great reliability.


2015 ◽  
Vol 219 ◽  
pp. 50-56 ◽  
Author(s):  
Mingyue Xue ◽  
Liangliang Zhang ◽  
Mengbing Zou ◽  
Chuanqing Lan ◽  
Zhihua Zhan ◽  
...  

2021 ◽  
Vol 133 (2) ◽  
Author(s):  
Guiyu Fu ◽  
Huanyuan Weng ◽  
Zhuzhi Lai ◽  
Zhengzhong Lin ◽  
Zhiyong Huang

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