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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：女
毕业院校：大连理工大学
学位：博士
所在单位：生物工程学院
学科：生物化工. 生物工程与技术. 药物工程
办公地点：生物楼512
联系方式：wangjingyun67@dlut.edu.cn
电子邮箱：wangjingyun67@dlut.edu.cn
A red-emitting fluorescent probe with large Stokes shift for real-time tracking of cysteine over glutathione and homocysteine in living cells
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论文类型：期刊论文
发表时间：2019-05-05
发表刊物：SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
收录刊物：SCIE、PubMed、EI
卷号：214
页面范围：469-475
ISSN号：1386-1425
关键字：Fluorescent probe; Cysteine detection; Large Stokes shift; Fluorescence imaging
摘要：Fluorescent probes with high quality for highly selective detection of cysteine (Cys) are still urgently in demand because of the indispensable roles Cys plays in the biological systems. Herein, a red-emitting fluorescent probe CP was developed for the highly selective detection of Cys over glutathione (GSH) and homocysteine (Hcy) by incorporating acryloyl group as the recognition unit into the 2-(2-(4-hydroxystyryl)-6-methyl-4H-pyran-4-ylidene)malononitrile (P-OH) fluorophorewhich is characterized by redemission, noteworthy Stokes shift, and appreciable photostability. Basically, CP demonstrated appreciable sensing performance toward Cys including short response time of 4 min, high sensitivity with approximately 147-fold emission enhancement, low detection limit of 41.696 nM, and good selectivity both in the solution and living cells, indicating its promising potential of visualizing Cys in biological systems. (C) 2019 Elsevier B.V. All rights reserved.