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Updated: Aug 20, 2026

Aptamer-Based Target Detection Facilitated by a 3-Stage G-Quadruplex Isothermal Exponential Amplification Reaction
Published on: October 6, 2022
Detection of aptamer-protein interactions using QCM and electrochemical indicator methods
Tibor Hianik1, Veronika Ostatná, Zuzana Zajacová
1Faculty of Mathematics, Physics and Computer Sciences, Comenius University, 842 48 Bratislava, Slovakia. hianik@fmph.uniba.sk
Abstract:
We report novel method of detection thrombin-aptamer interaction based on measurement the charge consumption from the electrode covered by DNA aptamers to an electrochemical indicator methylene blue (MB), that is bounded to a thrombin. The binding of thrombin to an aptamers has been detected also by QCM method in flow measuring cell. We showed that using MB it is possible to detect thrombin with high sensitivity and selectivity.

