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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
Gold nanoparticle-based colorimetric detection of mercury ion via coordination chemistry
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论文类型：期刊论文
发表时间：2015-06-01
发表刊物：SENSORS AND ACTUATORS B-CHEMICAL
收录刊物：SCIE、EI
卷号：212
页面范围：481-486
ISSN号：0925-4005
关键字：Colorimetric assay; Gold nanoparticle; Coordination chemistry; Thymine derivative; Mercury ion
摘要：A simple, fast, and convenient colorimetric detection of Hg2+ in aqueous media was presented based on the selective binding capability of thymine derivative (N-T) toward Hg2+. N-T decorated AuNPs solution was stable in red color, while the presence of Hg2+ induces significant aggregation of AuNPs along with red-to-blue color changes. Therefore, Hg2+ content in real water samples can be qualitatively detected by our naked eyes; meanwhile, good linear relationship of Hg2+ along with A(650 nm/520 nm) values could be obtained for its quantitative determination. Furthermore, our system shows excellent selectivity to mercury ions against any other tested metal ions and anions, and good sensitivity with LOD of 0.8 nM in real water samples. (C) 2015 Elsevier B.V. All rights reserved.