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Updated: Jun 24, 2026

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Colorimetric Detection of Bacteria Using Litmus Test
Published on: September 17, 2016
G-Quadruplex-based DNAzyme as a sensing platform for ultrasensitive colorimetric potassium detection
Tao Li1, Erkang Wang, Shaojun Dong
1State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
Abstract:
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.

