My research work is focused on organic bioelectronic devices. My present work is on the electroactive microbe as a key element integrated with OECTs for sensing specific chemical recognition, such as toxins, pathogens, disease-causing microbes, etc. I am using electroactive microbes such as Shewanella Oneidensis and engineered E. coli. My previous research was on fully soft OECT, and its performance under mechanical strain was demonstrated for the first time by amplifying the physiological signals. Another manuscript with a similar device for neuromorphic computing is in progress. Apart from these I have developed a few polymers for organic devices and explored polymer science.

Selective Journal Publications Dr. Sujitkumar.

1. Haechan Park, Sehyun Kim, Juyeong Lee, Inwoo Lee, Sujitkumar Bontapalle, Younghoon Na, Kyoseung Sim; Organic flexible electronics with closed-loop recycling for sustainable wearable technology, Accepted at Nature Electronics,7, 39-50 2024 (Artwork is Front cover of Volume 7, Issue 1, Jan 2024).

2. Sujitkumar Bontapalle, Myeonghyeon Na, Haechan Park, Kyoseung Sim; Fully soft Organic electrochemical transistor enabling direct skin mountable electrophysiological signal amplification, Chemical Communication, 58 (9), 1298, 2022 (Artwork is front cover of volume 58, Issue 9, Jan 2022 ).

3. Andreas Opitz, Dominique Lungwitz, Raphael Schlesinger, Sujitkumar Bontapalle, Susy Varughese, Keli Fabiana Seidel, Thomas Krüger, Jan Behrends, Seth R. Marder, and Norbert Koch; Polyethylenimine cathode interlayer; influence of solvent on functionality and single-step formation from polymer blend solution, Proc. SPIE 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII, 118090Q, 2021.

4. Sujitkumar Bontapalle, Andreas Opitz, Raphael Schlesinger, Seth Marder, Susy Varughese, Norbert Koch; Electrode work function reduction by polyethylenimine interlayers: Choice of solvent and residual solvent removal for superior functionality, Advanced Materials Interfaces, 7 (11), art. No. 2000291, 2020.

5. Sujitkumar Bontapalle, Susy Varughese; Understanding the mechanism of ageing and a method to improve the ageing resistance of conducting PEDOT:PSS films, Polymer Degradation and Stability, 171, art no. 109025, 2020.