title: A "turn-on" carbon nanotube-Ag nanoclusters fluorescent sensor for sensitive and selective detection of Hg2+ with cyclic amplification of exonuclease III activity.
abstract: With exonuclease III activity on DNA hybrids containing thymine-Hg(2+)-thymine, a label-free ultrasensitive "turn-on" fluorescent sensor involving "quenching" and "reappearing" processes based on a carbon nanotube-Ag nanoclusters system is demonstrated for amplified determination of Hg(2+).
authors.affiliation: Key Laboratory of Chem-Biosensing, Anhui province, Wuhu 241000, P R China. xjzhang@mail.ahnu.edu.cn.
authors.forename: Guangfeng
authors.initials: G
authors.lastname: Wang
authors.forename: Gang
authors.initials: G
authors.lastname: Xu
authors.forename: Yanhong
authors.initials: Y
authors.lastname: Zhu
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Zhang
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003500:Cyclization; D005090:Exodeoxyribonucleases / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D057230:Limit of Detection; D008628:Mercury / Q000032:analysis*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D037742:Nanotubes, Carbon; D012834:Silver; D005090:Exodeoxyribonucleases; C020133:exodeoxyribonuclease III; D008628:Mercury