Preprints & Working Papers

1. Raut, B., Gopal, P., Wang, J., Campbell, S., Kumar, V., Ra, K., & Verma, M. S. (2026). ThermiQuant™ AquaStream: A Portable Instrument for Quantitative Colorimetric Isothermal Nucleic Acid Amplification Reactions in Paper and Tube Formats. bioRxiv. DOI: 10.64898/2026.01.15.699357

2. Raut, B., Gopal, P., Kumar, V., Fleck, A., Ahmed, B., Davidson, J. L., Relich, R. F., Schoonmaker, J. P., Pasternak, J. A., & Verma, M. S. (2026). ThermiQuant™ MegaScan: High-throughput isothermal reactor with quantitative colorimetric readout for paper-based nucleic acid amplification tests. bioRxiv. DOI: 10.64898/2026.01.09.696240

3. Kim, T., Gopal, P., Raut, B., Ardekani, A. M., & Verma, M. S. (2025). Evaluation of Paper-based Loop-Mediated Isothermal Amplification. ResearchGate Preprint.

4. Peer-Reviewed Journal Publications

5. Gopal, P., Malecka, K., Dehaen, W., Radecki, J., & Radecka, H. (2021). Immunosensor incorporating half-antibody fragment for electrochemical monitoring of Amyloid-β fibrils in artificial blood plasma. Bioelectrochemistry, 137, 107643.

6. Gopal, P., Narasimha, G., & Reddy, T. M. (2020). Electrochemical kinetic evolution of epinephrine at the developed tyrosinase based biosensor and its sensitive determination in human serum samples. Process Biochemistry, 92, 476–485.

7. Malecka, K., Menon, S., Gopal, P., Kumar, K. G., Daniels, M., Dehaen, W., Radecki, J., & Radecka, H. (2020). Redox-active monolayers self-assembled on gold electrodes: Effect of their structures on electrochemical parameters and DNA sensing ability. Molecules, 25, 607.

8. Gopal, T. V., Reddy, T. M., Shaikshavali, P., Venkataprasad, G., & Gopal, P. (2019). A Facile In-Situ Development of L-Valine Film onto the Surface of Carbon Paste Electrode Towards the Detection of Environmentally Hazardous 4-Amino Phenol. Zeitschrift für Physikalische Chemie. https://doi.org/10.1515/zpch-2019-0007

9. Venkataprasad, G., Reddy, T. M., Narayana, A. L., Hussain, O. M., Shaikshavali, P., Gopal, T. V., & Gopal, P. (2019). A facile synthesis of Fe3O4-Gr nanocomposite and its effective use as electrochemical sensor for the determination of dopamine and as anode material in lithium ion batteries. Sensors and Actuators A: Physical, 293, 87–100.

10. Shaikshavali, P., Reddy, T. M., Palakollu, V. N., Karpoormath, R., Rao, Y. S., Venkataprasad, G., Gopal, T. V., & Gopal, P. (2019). A simple method of developing CuOAu/MWCNTs nanocomposite modified glassy carbon electrode for the sensitive and selective simultaneous monitoring of Acetaminophen and 4-Aminophenol. Synthetic Metals, 252, 29–39.

11. Venkataprasad, G., Reddy, T. M., Gopal, T. V., Shaikshavali, P., & Gopal, P. (2019). Fabrication of a Novel Shaped Graphene/poly (Evan’s blue) Composite Chemical Sensor for the Electrocatalytic Boost up of Neurotransmitter (Dopamine): A Voltammetric Investigation. Analytical & Bioanalytical Electrochemistry, 11, 1100–1116.

12. Gopal, P., & Reddy, T. M. (2018). Development of electrochemical sensor for the monitoring of terbutaline in pharmaceutical formulations. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 538, 600–609.

13. Shaikshavali, P., Reddy, T. M., Venkataprasad, G., & Gopal, P. (2018). A highly selective electrochemical sensor based on multi walled carbon nano tubes/poly (Evans blue) composite for the determination of L-Dopa in presence of 5-HT and folic acid: A voltammetric investigation. Journal of the Iranian Chemical Society, 15, 1831–1841.

14. Gopal, T. V., Reddy, T. M., Venkataprasad, G., Shaikshavalli, P., & Gopal, P. (2018). Rapid and sensitive electrochemical monitoring of paracetamol and its simultaneous resolution in presence of epinephrine and tyrosine at graphene oxide and L-Valine composite film modified carbon paste electrode. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 545, 117–126.

15. Venkataprasad, G., Reddy, T. M., Gopal, T. V., Shaikshavali, P., & Gopal, P. (2018). A novel electrochemical sensor based on multi-walled carbon nanotubes/poly (LMethionine) for the investigation of 5-nitroindazole: A voltammetric study. Analytical Chemistry Letters, 8, 457–474.

16. Gopal, P., Reddy, T. M., & Narayana, P. V. (2017). Development, Characterization and Application of a Carbon-Based Nanomaterial Composite as an Electrochemical Sensor for Monitoring Natural Antioxidant (Gallic Acid) in Beverages. ChemistrySelect, 2, 3804–3811.

17. Venkataprasad, G., Reddy, T. M., Shaikshavali, P., Gopal, P., & Narayana, P. V. (2017). Electrochemical Determination of 3,5-dinitrobenzoic Acid in the Presence and Absence of CTAB at Multi-Walled Carbon Nanotubes Modified Glassy Carbon Electrode: A Voltammetric Study. Analytical & Bioanalytical Electrochemistry, 9, 400–411.

18. Shaikshavali, P., Reddy, T. M., Venkataprasad, G., & Gopal, P. (2017). Fabrication, Characterization and Application of Poly (L-Cystine)/multi Walled Carbon Nanotubes Modified Glassy Carbon Electrode towards the Simultaneous Determination of Dopamine in presence of Uric Acid and Folic Acid. Analytical & Bioanalytical Electrochemistry, 9, 940–955.

19. Reddy, G. V. R., Reddy, T. M., Narayana, P. V., Gopal, P., & Reddaiah, K. (2016). Electrochemical Determination of Dopamine and its Simultaneous Resolution in the Presence of Uric Acid at Poly (Pyrocatechol Violet) Modified Glassy Carbon Electrode: A Voltammetric Study. Indian Journal of Advances in Chemical Science, 4, 250–256.

20. Reddy, G. V. R., Reddy, T. M., Gopal, P., & Narayana, P. V. (2016). The Electrochemical Redox Behavior of Pyrocatechol Violet and its Quantitative Measurement at Graphene Modified Glassy Carbon Electrode: A Voltammetric Study. Indian Journal of Advances in Chemical Science, 4, 490–495.

21. Narayana, P. V., Reddy, T. M., Gopal, P., Reddy, M. M., & Naidu, G. R. (2015). Electrocatalytic boost up of epinephrine and its simultaneous resolution in the presence of serotonin and folic acid at poly (serine)/multi-walled carbon nanotubes composite modified electrode: A voltammetric study. Materials Science and Engineering: C, 56, 57–65.

22. Gopal, P., Reddy, T. M., Raghu, P., Reddaiah, K., & Narayana, P. V. (2015). Electrocatalytic Activity of L-Cystine towards the Sensitive and Simultaneous Measurement of Nitrobenzene and 4-Nitrophenol: A Voltammetric Study. Analytical & Bioanalytical Electrochemistry, 7, 739–751.

23. Gopal, P., Reddy, T. M., Nagaraju, C., & Narasimha, G. (2014). Preparation, characterization and analytical application of an electrochemical laccase biosensor towards low level determination of isoprenaline in human serum samples. RSC Advances, 4, 57591–57599.

24. Raghu, P., Reddy, T. M., Gopal, P., Reddaiah, K., & Sreedhar, N. Y. (2014). A novel horseradish peroxidase biosensor towards the detection of dopamine: A voltammetric study. Enzyme and Microbial Technology, 57, 8–15.

25. Narayana, P. V., Reddy, T. M., Gopal, P., & Naidu, G. R. (2014). Electrochemical sensing of paracetamol and its simultaneous resolution in the presence of dopamine and folic acid at a multi-walled carbon nanotubes/poly(glycine) composite modified electrode. Analytical Methods, 6, 9459–9468.

26. Gopal, P., Reddy, T. M., Raghu, P., Reddaiah, K., & Narayana, P. V. (2014). The Electrochemical Redox Behaviour of Acid Blue 25 and its Quantitative Measurement at Carbon Paste Electrode: A Voltammetric Study. Analytical & Bioanalytical Electrochemistry, 6, 183–194.

27. Reddaiah, K., Reddy, T. M., Rao, Y. S., Raghu, P., & Gopal, P. (2014). Development of electrochemical sensor based on β-cyclodextrin/K10 montmorillonite towards the enhanced electro-catalytic oxidation of isoorientin: A voltammetric study. Materials Science and Engineering: B, 183, 69–77.

28. Narayana, P. V., Reddy, T. M., Gopal, P., Raghu, P., Reddaiah, K., & Srinivasulu, M. (2014). Development of Trypan Blue Polymer Film Based Electrochemical Sensor for the Determination of Dopamine and its Simultaneous Detection in Presence of Ascorbic Acid and Uric acid: A Voltammetric Method. Analytical & Bioanalytical Electrochemistry, 6, 485–500.

29. Narayana, P. V., Reddy, T. M., Gopal, P., Reddaiah, K., & Raghu, P. (2014). Development of Electrochemical sensor based on Poly (xylenol orange) film towards the determination of L-Dopa and its simultaneous resolution in the presence of Uric acid: A cyclic Voltammetric study. Research Journal of Chemical Sciences, 4, 37–43.

30. Gopal, P., Reddy, T. M., Reddaiah, K., Raghu, P., & Narayana, P. V. (2013). An electrochemical investigation and reduction mechanism of 3, 5- Dinitrobenzoic acid at a glassy carbon electrode: A voltammetric study. Journal of Molecular Liquids, 178, 168–174.

31. Reddaiah, K., Reddy, T. M., Raghu, P., & Gopal, P. (2012). Sol-gel Immobilized Horseradish Peroxidase Modified Carbon Paste Electrode towards the Determination of Hydroquinone in Non-Aqueous Solvents: A Voltammetric Study. Analytical & Bioanalytical Electrochemistry, 4, 372–385.