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- Wang, Huai-Sheng, et al. Show all 5 Authors
- Analytical methods 2017 v.9 no.35 pp. 5121-5126
- absorbance; catalytic activity; chemical bonding; color; colorimetry; complementary DNA; electrodes; environmental monitoring; fuels; gold; hybridization chain reaction; mercury; oxidation; peroxidase; thymine
- ... A simple colorimetric sensing method for the detection of Hg²⁺ was developed by combining enzymatic catalysis with DNA-based hybridization chain reactions (HCRs). Firstly, thymine (T)-rich capture DNA (cDNA) was immobilized on a gold electrode via Au–S bonding. In the presence of Hg²⁺, thymine (T)-rich probe DNA (pDNA) hybridized with cDNA via T–Hg²⁺–T base pairs. Then the HCRs were realized using ...