Journal
BIOSENSORS & BIOELECTRONICS
Volume 171, Issue -, Pages -Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2020.112746
Keywords
Neurostimulation; Implantable biofuel cell; Animal brain stimulator; Birds; In vivo
Categories
Funding
- Defense Acquisition Program Administration [UD140069ID]
- National Research Foundation of Korea (NRF) - Korean government (MSIT) [2017R1E1A1A01074236]
- National Research Foundation of Korea [2017R1E1A1A01074236, 4199990214002, 4199990314530] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study shows the successful combination of a biofuel cell and an animal brain stimulator implanted in a pigeon, with glucose oxidation and oxygen reduction in the enzymatic BFC supplying power to the ABS. The in vivo BFC was able to harvest energy at a rate of 28.4 mJ over 10 minutes, sufficient for intermittent neurostimulation.
Animals digest food to fuel brain neurometabolism via cellular respiration. This study demonstrates the combination of a biofuel cell (BFC) and an animal brain stimulator (ABS) implanted in a pigeon. Glucose oxidation and oxygen reduction in an enzymatic BFC supplied electrical power to the ABS. Power from the BFC reached 0.12 mW in vitro and 0.08 mW in vivo using only the natural glucose and oxygen in the pigeon's body. A power management integrated circuit is used to harvest energy from the in vivo BFC at a rate of 28.4 mJ over 10 min, which is sufficient for intermittent neurostimulation.
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