title: Designing label-free DNA sequences to achieve controllable turn-off/on fluorescence response for Hg2+ detection.
abstract: Controllable turn off/on fluorescent sensors for Hg(2+) detection were developed by designing different label-free DNA sequences and using the minor groove dye of DAPI. These assays exhibit high sensitivity and selectivity, with the detection limits of 5 nM and 1.5 nM for turn off and turn on sensors, respectively.
authors.affiliation: Department of Chemistry, Wuhan University, Wuhan 430072, China.
authors.forename: Zece
authors.initials: Z
authors.lastname: Zhu
authors.forename: Liang
authors.initials: L
authors.lastname: Xu
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhou
authors.forename: Jingui
authors.initials: J
authors.lastname: Qin
authors.forename: Chuluo
authors.initials: C
authors.lastname: Yang
mesh_terms: D020856:AT Rich Sequence; D001483:Base Sequence; D015374:Biosensing Techniques / Q000379:methods*; D004247:DNA / Q000235:genetics*; D007211:Indoles / Q000737:chemistry; D008628:Mercury / Q000032:analysis*; D013050:Spectrometry, Fluorescence
chemical_list: D007211:Indoles; C007293:DAPI; D004247:DNA; D008628:Mercury