TY - JOUR
T1 - A needle-type biofuel cell using enzyme/mediator/carbon nanotube composite fibers for wearable electronics
AU - Yin, Sijie
AU - Liu, Xiaohan
AU - Kobayashi, Yuka
AU - Nishina, Yuta
AU - Nakagawa, Ryo
AU - Yanai, Ryoji
AU - Kimura, Kazuhiro
AU - Miyake, Takeo
N1 - Funding Information:
The research presented in this article was supported by the TEPCO Memorial Foundation . Part of this work was conducted at Kitakyushu Foundation for the Advancement of Industry, Science and Technology, Semiconductor Center, supported by "Nanotechnology Platform Program" of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/10/1
Y1 - 2020/10/1
N2 - To realize direct power generation from biofuels in natural organisms, we demonstrate a needle-type biofuel cell (BFC) using enzyme/mediator/carbon nanotube (CNT) composite fibers with the structure Osmium-based polymer/CNT/glucose oxidase/Os-based polymer/CNT. The composite fibers performed a high current density (10 mA/cm2) in 5 mM artificial blood glucose. Owing to their hydrophilicity, they also provided sufficient ionic conductivity between the needle-type anode and the gas-diffusion cathode. When the tip of the anodic needle was inserted into natural specimens of grape, kiwifruit, and apple, the assembled BFC generated powers of 55, 44, and 33 μW from glucose, respectively. In addition, the power generated from the blood glucose in mouse heart was 16.3 μW at 0.29 V. The lifetime of the BFC was improved by coating an anti-fouling polymer 2-methacryloyloxyethyl phosphorylcholine (MPC) on the anodic electrode, and sealing the cathodic hydrogel chamber with medical tape to minimize the water evaporation without compromising the oxygen permeability.
AB - To realize direct power generation from biofuels in natural organisms, we demonstrate a needle-type biofuel cell (BFC) using enzyme/mediator/carbon nanotube (CNT) composite fibers with the structure Osmium-based polymer/CNT/glucose oxidase/Os-based polymer/CNT. The composite fibers performed a high current density (10 mA/cm2) in 5 mM artificial blood glucose. Owing to their hydrophilicity, they also provided sufficient ionic conductivity between the needle-type anode and the gas-diffusion cathode. When the tip of the anodic needle was inserted into natural specimens of grape, kiwifruit, and apple, the assembled BFC generated powers of 55, 44, and 33 μW from glucose, respectively. In addition, the power generated from the blood glucose in mouse heart was 16.3 μW at 0.29 V. The lifetime of the BFC was improved by coating an anti-fouling polymer 2-methacryloyloxyethyl phosphorylcholine (MPC) on the anodic electrode, and sealing the cathodic hydrogel chamber with medical tape to minimize the water evaporation without compromising the oxygen permeability.
KW - Enzymatic biofuel cell
KW - Minimal invasive
KW - Needle-type
KW - Power generation biocompatibility
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U2 - 10.1016/j.bios.2020.112287
DO - 10.1016/j.bios.2020.112287
M3 - Article
C2 - 32729469
AN - SCOPUS:85086638958
SN - 0956-5663
VL - 165
JO - Biosensors and Bioelectronics
JF - Biosensors and Bioelectronics
M1 - 112287
ER -