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Updated: Apr 18, 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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An enzyme-free and amplified colorimetric detection strategy: assembly of gold nanoparticles through target-catalytic
Ke Quan1, Jin Huang, Xiaohai Yang
1State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, China. kmwang@hnu.edu.cn.
The Analyst
|January 7, 2015
Abstract:
Herein we introduce an enzyme-free and amplified colorimetric detection strategy, which is based on gold nanoparticle (AuNP) aggregation through target-catalytic DNA circuits (HCR and CHA).

