An Electrochemical DNA Sensor Based on Conducting Polymer Electrode

  • Trieu Van Vu QuanEmail author
  • Tran Quang Thinh
  • Le Binh Dương
  • Tran Hong Thuy
  • Chu Thi Xuan
  • Mai Anh Tuan
Conference paper
Part of the IFMBE Proceedings book series (IFMBE, volume 69)


In this paper, a DNA aptamer was detected by electrochemical DNA sensors. To enhance the sensitivity and selectivity, the working electrode surface of the electrochemical sensor was modified by a synthesis of poly-pyrrole nanowires. Characterization of poly-pyrrole nanowire was verified by SEM images. The evaluation of DNA sensors was implemented using EC301 Potentiostat from SRS. The sensor can detect the DNA concentration as low as 10−12 mol/l. A series of measurement were conducted, which showed the relationship between DNA concentrations and peak current.


Electrochemical DNA sensors Potentiostat Conducting polymer 



This research is supported by The World Academy of Science (TWAS) under Grant no. 16-169 RG/PHYS/AS_I-FR3240293345.

Conflict of Interest Statement The authors declare that there is no conflict of interest.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Trieu Van Vu Quan
    • 1
    Email author
  • Tran Quang Thinh
    • 1
  • Le Binh Dương
    • 1
  • Tran Hong Thuy
    • 2
  • Chu Thi Xuan
    • 2
  • Mai Anh Tuan
    • 1
  1. 1.National Center for Technological ProgressHanoiVietnam
  2. 2.Hanoi University of Science and TechnologyHanoiVietnam

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