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Updated: Jul 4, 2026

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A Method for Selecting Structure-switching Aptamers Applied to a Colorimetric Gold Nanoparticle Assay
Published on: February 28, 2015
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A high-performance aptasensor for mercury(II) based on the formation of a unique ternary structure of
Cai Gao1, Qingxiang Wang, Feng Gao
1College of Chemistry and Environment, Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou, 363000, P. R. China. axiang236@126.com.
Abstract:
A highly sensitive and selective electrochemical aptasensor for mercury(II) has been developed based on the formation of a ternary complex between a mercury(II) specific aptamer (MSA), the neutral red (NR) molecule and the Hg(2+) ion without pre-modification of the probe aptamer.

