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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：中国化学会创始会士、常务理事，中国化工学会会士
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：应用化学. 精细化工. 化学生物学
办公地点：大连理工大学西部校区知顺楼F-202#
http://peng-group.dlut.edu.cn/
联系方式：大连理工大学西部校区知顺楼F-202 辽宁省大连市高新区凌工路2号，大连116024 课题组网址：http://peng-group.dlut.edu.cn/ E-mail: pengxj@dlut.edu.cn
电子邮箱：pengxj@dlut.edu.cn
A new fluorescent sensor selective for Pb2+ in water capable of two-photon-induced fluorescence measurement
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论文类型：期刊论文
发表时间：2009-06-01
发表刊物：SCIENCE IN CHINA SERIES B-CHEMISTRY
收录刊物：SCIE、EI
卷号：52
期号：6
页面范围：780-785
ISSN号：1006-9291
关键字：two-photon; fluorescent sensor; lead ion; aqueous environment; two-photon action cross section; chemosensor; sensor
摘要：A new fluorescent sensor (1) for Pb2+ containing a 1,4-dicyano-2,5-bis(styryl)benzene fluorophore and 2-(N,N'-bis(carboxylmethyl))amino-1-carboxylmethoxylbenzene as receptor has been synthesized. The sensor selectively responds to Pb2+ in the aqueous environment, and brings about similar and significant changes in one- and two-photon excited emission spectra: lambda (max) red-shift from 460 (519) to 590 nm. The selective response is pH-independent in a large physiological pH range, and two-photon action cross section (Phi delta) is 51 GM (1 GM = 1x10(-50) cm(4)center dot s center dot photon(-1)center dot molecule(-1)) at 740 nm.