title: A simple and label-free sensor for mercury(II) detection in aqueous solution by malachite green based on a resonance scattering spectral assay.
abstract: Mercury ions (Hg(2+)) can specifically interact with the thymine-rich Hg(2+) aptamer and malachite green (MG) to form the Hg(2+) aptamer-MG-Hg(2+) complex, inducing the increase of resonance scattering (RS) intensity at 611 nm, which enables the label-free detection of Hg(2+) in aqueous solution with high selectivity and a detection limit of 1.7 nM.
authors.affiliation: Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
authors.forename: Yuangen
authors.initials: Y
authors.lastname: Wu
authors.forename: Shenshan
authors.initials: S
authors.lastname: Zhan
authors.forename: Lurong
authors.initials: L
authors.lastname: Xu
authors.forename: Weiwei
authors.initials: W
authors.lastname: Shi
authors.forename: Tao
authors.initials: T
authors.lastname: Xi
authors.forename: Xuejia
authors.initials: X
authors.lastname: Zhan
authors.forename: Pei
authors.initials: P
authors.lastname: Zhou
mesh_terms: D052157:Aptamers, Nucleotide / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D012394:Rosaniline Dyes / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013941:Thymine / Q000737:chemistry; D014867:Water / Q000737:chemistry*
chemical_list: D052157:Aptamers, Nucleotide; D012394:Rosaniline Dyes; D014867:Water; C005095:malachite green; D008628:Mercury; D013941:Thymine