title: An ultrasensitive electrochemical "turn-on" label-free biosensor for Hg2+with AuNP-functionalized reporter DNA as a signal amplifier.
abstract: A highly selective electrochemical biosensor for the ultrasensitive detection of Hg2+ in aqueous solution has been developed based on the strong and specific binding of Hg2+ by two DNA thymine bases (T-Hg2+-T) and the use of AuNP-functionalized reporter DNA to achieve signal amplification.
authors.affiliation: State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
authors.forename: Rong-Mei
authors.initials: RM
authors.lastname: Kong
authors.forename: Xiao-Bing
authors.initials: XB
authors.lastname: Zhang
authors.forename: Liang-Liang
authors.initials: LL
authors.lastname: Zhang
authors.forename: Xiao-Yong
authors.initials: XY
authors.lastname: Jin
authors.forename: Shuang-Yan
authors.initials: SY
authors.lastname: Huan
authors.forename: Guo-Li
authors.initials: GL
authors.lastname: Shen
authors.forename: Ru-Qin
authors.initials: RQ
authors.lastname: Yu
mesh_terms: D004247:DNA / Q000737:chemistry*; D021881:DNA, Catalytic / Q000737:chemistry; D004785:Environmental Pollutants / Q000032:analysis*; D006046:Gold / Q000737:chemistry*; D008628:Mercury / Q000032:analysis*; D053768:Metal Nanoparticles / Q000737:chemistry*; D013941:Thymine / Q000737:chemistry
chemical_list: D021881:DNA, Catalytic; D004785:Environmental Pollutants; D006046:Gold; D004247:DNA; D008628:Mercury; D013941:Thymine