G-Quadruplex-based DNAzyme as a sensing platform for ultrasensitive colorimetric potassium detection.
Two G-quadruplex DNAs are able to form peroxidase-like DNAzymes selectively promoted by K(+), which provides a label-free approach to colorimetric detection of K(+) with the highest sensitivity ever reported.
Li
Tao
T
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
Wang
Erkang
E
Dong
Shaojun
S
D015374:Biosensing Techniques; D003124:Colorimetry / Q000379:methods*; D021881:DNA, Catalytic / Q000737:chemistry*; D054856:G-Quadruplexes; D006427:Hemin / Q000737:chemistry; D011188:Potassium / Q000032:analysis*
D021881:DNA, Catalytic; D006427:Hemin; D011188:Potassium