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A Novel DNA Biosensor Based on a Pencil Graphite Electrode Modified with Polypyrrole/Functionalized Multiwalled Carbon Nanotubes for Determination of 6-Mercaptopurine Anticancer Drug
Open accessAbstract
A novel and sensitive biosensor employing immobilized DNA on a pencil graphite electrode modified with polypyrrole/functionalized multiwalled carbon nanotubes for the determination of 6-mercaptopurine (6-MP) is presented. In the first step, we modified the pencil graphite surface with polypyrrole and functionalized multiwalled carbon nanotubes (MWCNT/COOH). The developed electrode was characterized by scanning electron microscopy, atomic force microscopy, reflection–absorption infrared spectroscopy, X-ray photoelectron spectroscopy, and electrochemical impedance spectroscopy. In the other step, we used decreases in the oxidation responses of guanine and adenine as a sign of the interaction of 6-MP with salmon sperm double-stranded DNA using differential pulse voltammetry. The signal of guanine oxidation was linear with respect to the 6-MP concentration in the range of 0.2–100 μmol L –1 with a detection limit of 0.08 μmol L –1 . The modified electrode was utilized for the determination of 6-MP in real samples.
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Cited by
Karimi-Maleh, H., Shojaei, A. F., Tabatabaeian, K., Karimi, F., Shakeri, S., & Moradi, R. (2016) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2016.07.086 · Cited by 293
Self-citationKarimi-Maleh, H., Karimi, F., Malekmohammadi, S., Zakariae, N., Esmaeili, R., Rostamnia, S., Yola, M. L., Atar, N., Movaghgharnezhad, S., Rajendran, S., et al. (2020) · Journal of Molecular Liquids · doi:10.1016/j.molliq.2020.113185 · Cited by 284
Self-citationMohanraj, J., Durgalakshmi, D., Rakkesh, R. A., Balakumar, S., Rajendran, S., & Karimi-Maleh, H. (2020) · Journal of Colloid and Interface Science · doi:10.1016/j.jcis.2020.01.089 · Cited by 282
Self-citationMicroneedle-based biosensor for minimally-invasive lactate detection
Bollella, P., Sharma, S., Cass, A. E. G., & Antiochia, R. (2019) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2018.08.010 · Cited by 267
Zhou, T., Yan, L., Xie, C., Li, P., Jiang, L., Fang, J., Zhao, C., Ren, F., Wang, K., Wang, Y., et al. (2019) · Small · doi:10.1002/smll.201805440 · Cited by 143
Metadata
- Authors
- Karimi-Maleh, H., Tahernejad-Javazmi, F., Atar, N., Yola, M. L., Gupta, V. K., & Ensafi, A. A.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-04-03
- Volume
- 54
- Issue
- 14
- Pages
- 3634-3639
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2332947047
- Cited by
- 412
- References
- 0
- FWCI
- 28.71
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: A Novel DNA Biosensor Based on a Pencil Graphite Electrode Modified with Polypyrrole/Functionalized Multiwalled Carbon Nanotubes for Determination of 6-Mercaptopurine Anticancer Drug. https://app.cochat.ai/papers/10.1021/ie504438z
- The paper
- Karimi-Maleh, H., Tahernejad-Javazmi, F., Atar, N., Yola, M. L., Gupta, V. K., & Ensafi, A. A. (2015). A Novel DNA Biosensor Based on a Pencil Graphite Electrode Modified with Polypyrrole/Functionalized Multiwalled Carbon Nanotubes for Determination of 6-Mercaptopurine Anticancer Drug. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie504438z
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