Specific Hg(2+)-mediated perylene bisimide aggregation for highly sensitive detection of cysteine.
Hg(2+) was found to specifically induce the aggregation of perylene bisimide in a "thymine-Hg(2+)-thymine" binding motif and the resultant aggregates showed a highly selective and sensitive turn-on fluorescence response for cysteine, with a detection limit down to 9.6 nM.
Ruan
Yi-Bin
YB
Department of Chemistry, College of Chemistry and Chemical Engineering, and the MOE Key Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China.
Li
Ai-Fang
AF
Zhao
Jin-Song
JS
Shen
Jiang-Shan
JS
Jiang
Yun-Bao
YB
D003545:Cysteine / Q000032:analysis*; D007094:Imides / Q000737:chemistry*; D008628:Mercury / Q000737:chemistry*; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013941:Thymine / Q000737:chemistry
D007094:Imides; C510697:perylene bisimide; D010569:Perylene; D008628:Mercury; D003545:Cysteine; D013941:Thymine