Abstract
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.
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Acknowledgements
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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Van Vu Quan, T., Thinh, T.Q., Dương, L.B., Thuy, T.H., Xuan, C.T., Tuan, M.A. (2020). An Electrochemical DNA Sensor Based on Conducting Polymer Electrode. In: Van Toi , V., Le, T., Ngo, H., Nguyen, TH. (eds) 7th International Conference on the Development of Biomedical Engineering in Vietnam (BME7). BME 2018. IFMBE Proceedings, vol 69. Springer, Singapore. https://doi.org/10.1007/978-981-13-5859-3_62
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