title: Highly sensitive fluorescent sensor for mercury based on hyperbranched rolling circle amplification.
abstract: A label-free hyperbranched rolling circle amplification (HRCA) based fluorescent sensor has been developed for Hg(2+) detection. The fluorescence intensity has a linear relationship with the concentration of the target in the range of 0.425 pmol L(-1) to 42.5 nmol L(-1), and the detection limit is as low as 0.14 pmol L(-1) (S/N = 3). The proposed sensor had been applied to detect Hg(2+) in water samples with satisfying results.
authors.affiliation: Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China. zlan@fzu.edu.cn.
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Chen
authors.forename: Ping
authors.initials: P
authors.lastname: Tong
authors.forename: Yifen
authors.initials: Y
authors.lastname: Lin
authors.forename: Wei
authors.initials: W
authors.lastname: Lu
authors.forename: Yu
authors.initials: Y
authors.lastname: He
authors.forename: Minghua
authors.initials: M
authors.lastname: Lu
authors.forename: Lan
authors.initials: L
authors.lastname: Zhang
authors.forename: Guonan
authors.initials: G
authors.lastname: Chen
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry*; D057230:Limit of Detection; D008628:Mercury / Q000032:analysis*; D021141:Nucleic Acid Amplification Techniques / Q000379:methods*; D014867:Water / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005456:Fluorescent Dyes; D014874:Water Pollutants, Chemical; D014867:Water; D008628:Mercury