Soft And Flexible Enzyme Fibers for Powering Wearable Devices from Body Fluids

Wearable devices with biocompatible mechanical behavior have garnered much attention in field of power harvesting, biomedical sensing and others. Functionalized fibers could be used in wearable devices as several elements of display, sensor, medical therapy, and batteries. Here, we demonstrated a soft and flexible enzyme fibers for a biobattery in wearable devices.<br/>The proposed fibers consist of an enzyme/Poly(1-vinylimidazole)-Osmium/carbon nanotube(CNT)/fiber for biofuel oxidation, and enzyme/multi-layered CNT/fiber for oxygen reduction. These fibers applied to the skin applications on cloth, bracelet, and semi-implantation of needle insertion.<br/>[1] Biosensors and Bioelectronics, 179, 113107, 2021. "Fiber-crafted biofuel cell bracelet for wearable electronics"<br/>[2]Biosensors and Bioelectronics, 165, 112287, 2020. "A needle-type biofuel cell using enzyme/mediator/carbon nanotube composite fibers for wearable electronics"<br/>[3]Biosensors and Bioelectronics, 141, 111471, 2019. “Wearable high-powered biofuel cells using enzyme/carbon nanotube composite fibers on textile cloth”