Patch-Type Wearable Enzymatic Lactate Biofuel Cell With Carbon Cloth Bioelectrodes for Energy Harvesting From Human Sweat


Enzyme-powered biofuel cells (EBFCs) are one of the most possible power sources for wearable microelectronic devices because of their small size and specificity of enzymes. The optimum realization of these energy sources becomes possible by fabricating biocompatible, flexible, and environment-friendly electrode materials with high active sites. Nanomaterials, with enhanced surface area, fulfill the above necessities and are used in a variety of applications. In this work, a novel membraneless enzymatic biofuel cell utilizing carbon nanotubes coated carbon cloth (CC) as bioelectrodes is presented. The bioelectrodes were integrated onto an article substrate to develop an economical and disposable patch-type wearable EBFC (W-EBFC). Such W-EBFC is designed which can deliver a power density of 132 and 104μW /cm 2 , with a stable voltage in 8-mM lactate concentration and real samples of human sweat, respectively. The results reflect that CC-based bioelectrodes-based biofuel cells have enormous potential to be a good energy source for wearable biomedical applications.
Date of Publication: March 8, 2022
Electronic ISSN: 2768-167X
Publisher: IEEE
MEMS, Microfluidics and Nanoelectronics Laboratory, Birla Institute of Technology and Science Pilani (BITS Pilani) at Hyderabad, Hyderabad, India
U. S. Jayapiriya received the B.Tech. degree in electronics from the National Institute of Technology at Puducherry, Karaikal, India, in 2016, and the M.Tech. degree in nanotechnology from the National Institute of Technology Karnataka at Surathkal, Mangaluru, India, in 2019. She is currently pursuing the Ph.D. degree with the MEMS, Microfluidics and Nanoelectronics (MMNE) Laboratory, Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Pilani (BITS Pilani) at Hyderabad, Hyderabad, India.
During her M.Tech. degree, she has worked on developing gold nanoparticles decorated aptamer-based tuberculosis detection for point of care diagnostics. She is also working under the supervision of Prof. S. Goel to develop microfluidic devices for biofuel cells for energy harvesting and sensing.
MEMS, Microfluidics and Nanoelectronics Laboratory, Birla Institute of Technology and Science Pilani (BITS Pilani) at Hyderabad, Hyderabad, India
Sanket Goel (Senior Member, IEEE) received the B.Sc. degree in H-physics from the Ramjas College, Delhi University, New Delhi, India, in 1998, the M.Sc. degree in physics from IIT Delhi, New Delhi, in 2000, and the Ph.D. degree in electrical and computer engineering from The University of Alberta, Edmonton, AB, Canada, in 2006.
He headed the Research and Development Department and worked as an Associate Professor with the University of Petroleum and Energy Studies, Dehradun, India, from 2011 to 2015. He is currently the Principal Investigator with the MEMS, Microfluidics and Nanoelectronics (MMNE) Laboratory, and a Professor with the Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science Pilani (BITS Pilani) at Hyderabad, Hyderabad, India. He has more than 250 publications, 17 patents to his credits, delivered more than 85 invited talks, and guided/guiding 40 Ph.D. and ten master’s students. His lab is focusing upon developing smart sensors and energy harvesters for diversified applications, and implementing several Indian and overseas funded projects.
Dr. Goel has won several awards, including the Best Student Paper Award in 2005, the Ph.D. Thesis Award in 2005, the Young Scientist Award in 2013, the Fulbright-Nehru Fellowship in 2015, the JSPS Fellowship in 2021, and the Best Faculty Award in 2021. He is also the Associate Editor of IEEE Sensors Journal, IEEE Transactions on Nanobioscience, Applied Nanoscience, and Journal of Nanobiotechnology. He is also in the Editorial Board of Journal of Micromechanics and Microengineering, and holds visiting appointment with UiT, The Arctic University of Norway.

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