Synthesis and evaluation of a new fluorescein and rhodamine B-based chemosensor for highly sensitive and selective detection of cysteine over other amino acids and its application in living cell imaging
Synthesis and evaluation of a new fluorescein and rhodamine B-based chemosensor for highly sensitive and selective detection of cysteine over other amino acids and its application in living cell imaging
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新型荧光素和罗丹明 B 化学传感器的合成和评估,用于比其他氨基酸高灵敏度和选择性检测半胱氨酸及其在活细胞成像中的应用
DOI:
10.1016/j.snb.2017.05.078
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发表时间:
2017-11
影响因子:
8.4
通讯作者:
Bao Xiaofeng
中科院分区:
文献类型:
--
作者:
Chen Hailang;Zhou Baojing;Ye Renlong;Zhu Jing;Bao Xiaofeng
A new fluorescent probe (TRDM-F) based on a molecular chain of open-loop maleic anhydride, rhodamine B and fluorescein was designed, synthesized and evaluated to develop a chemosensor. Photochemical studies show that fluorescence properties ofTRDM-Fare dominated by fluorescein group in the pH range of 2–10. UV–vis absorption and fluorescence spectroscopic studies further display a high selectivity towards Cys over GSH/Hcy and other amino acids and a high sensitivity towards Cys (0.088–270 μM) with 95-fold fluorescence enhancement in a HEPES buffer solution (10 mM, pH = 7.4) containing 20% MeCN at room temperature. We further demonstrated that the proposed method was satisfactorily applied to the discrimination of Cys in living Hela cells with low cell toxicity.
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DOI:
10.1016/j.jpba.2008.08.033
发表时间:
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影响因子:
3.4
作者:
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DOI:
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