A reusable biosensor for detecting mercury(II) at the subpicomolar level based on "turn-on" resonance light scattering.
A reusable sensing strategy employing magnetic nanoparticles and thymine-containing aptamers was developed to detect Hg(2+) in real water samples based on "turn-on" resonance light scattering. The LOD was as low as 500 fM (S/N = 3), and the present sensor can be repeatedly used for at least seven cycles.
Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Department of Chemistry, Liaocheng University, Liaocheng 252059, China.
Qiaoli
Q
Yue
Tongfei
T
Shen
Junting
J
Wang
Lei
L
Wang
Shuling
S
Xu
Haibo
H
Li
Jifeng
J
Liu
D001483:Base Sequence; D015374:Biosensing Techniques; D005095:Exoribonucleases / Q000737:chemistry; D006046:Gold / Q000737:chemistry; D007477:Ions / Q000737:chemistry; D008027:Light; D008628:Mercury / Q000032:analysis*; D053768:Metal Nanoparticles / Q000737:chemistry; D012542:Scattering, Radiation; D013050:Spectrometry, Fluorescence; D013941:Thymine / Q000737:chemistry; D014867:Water / Q000737:chemistry
D007477:Ions; D014867:Water; D006046:Gold; D005095:Exoribonucleases; C065486:oligonucleotidase; D008628:Mercury; D013941:Thymine