Selective detection of cysteine over homocysteine and glutathione by a bis(bromoacetyl)fluorescein probe
摘要:
A bromoacetyl functionalized fluorescein chemodosimeter (1) was utilized as a fluorescent probe for cysteine. The probe showed a selective and sensitive response to cysteine over homocysteine and glutathione in aqueous buffer through a rapid cyclization reaction. When cysteine was added, a fast fluorescence turn-on change of 1 was observed, thus allowing cysteine to be discriminated from other biothiols and micromolar concentrations of cysteine to be detected by the naked eye. (C) 2013 Elsevier Ltd. All rights reserved.
Selective detection of cysteine over homocysteine and glutathione by a bis(bromoacetyl)fluorescein probe
摘要:
A bromoacetyl functionalized fluorescein chemodosimeter (1) was utilized as a fluorescent probe for cysteine. The probe showed a selective and sensitive response to cysteine over homocysteine and glutathione in aqueous buffer through a rapid cyclization reaction. When cysteine was added, a fast fluorescence turn-on change of 1 was observed, thus allowing cysteine to be discriminated from other biothiols and micromolar concentrations of cysteine to be detected by the naked eye. (C) 2013 Elsevier Ltd. All rights reserved.
Selective detection of cysteine over homocysteine and glutathione by a bis(bromoacetyl)fluorescein probe
作者:Keum-Hee Hong、Soo-Yeon Lim、Mi-Yeon Yun、Joo-Won Lim、Je-Hyuk Woo、Hyockman Kwon、Hae-Jo Kim
DOI:10.1016/j.tetlet.2013.03.119
日期:2013.6
A bromoacetyl functionalized fluorescein chemodosimeter (1) was utilized as a fluorescent probe for cysteine. The probe showed a selective and sensitive response to cysteine over homocysteine and glutathione in aqueous buffer through a rapid cyclization reaction. When cysteine was added, a fast fluorescence turn-on change of 1 was observed, thus allowing cysteine to be discriminated from other biothiols and micromolar concentrations of cysteine to be detected by the naked eye. (C) 2013 Elsevier Ltd. All rights reserved.