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Updated: Jul 18, 2026

Phthalic Acid Ester-Binding DNA Aptamer Selection, Characterization, and Application to an Electrochemical Aptasensor
Published on: March 21, 2018
Development of a novel DNA sensing system using DNA aptamer that inhibits enzymatic activity 2
Kazunori Ikebukuro1, Wataru Yoshida, Takahisa Noma
1Department of Biotechnology & Life Science, Tokyo University of Agriculture & Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
Abstract:
We have developed novel DNA sensor system using the DNA aptamers for thrombin. We modified original thrombin aptamer by addition of the target DNA complementary strands to the 5' end or 3' end of aptamer. Inhibitory activity of this modified aptamer increased in the presence of target DNA. We were able to detect the target DNA by measuring thrombin activity using this aptamer without the separation of bound and free separation.

