Wearable high-powered biofuel cells using enzyme/carbon nanotube composite fibers on textile cloth

Sijie Yin, Zewen Jin, Takeo Miyake

Research output: Contribution to journalArticle

Abstract

Wearable biofuel cells with flexible enzyme/carbon nanotube (CNT) fibers were designed on a cotton textile cloth by integrating two components: bioanode fibers for glucose oxidation and O2-diffusion biocathode fibers for oxygen reduction. The anode and cathode fibers were prepared through modification with glucose dehydrogenase and bilirubin oxidase, respectively, on multi-walled carbon nanotube-coated carbon fibers. Both biofibers woven on the cloth generated a power density of 48 μW/cm2 at 0.24 V from 0.1 mM glucose (human sweat amount), and of 216 μW/cm2 at 0.36 V, when glucose was supplied from a hydrogel tank containing 200 mM glucose. Our fiber-based biofuel cell deformed to an S-shape without a significant loss in cell performance. Furthermore, we demonstrated a series-connection involving the tying of biofibers on a cloth with batik-based ionic isolation. The booster four cells generate power at 1.9 V that illuminated an LED on the cloth.

Original languageEnglish
Article number111471
JournalBiosensors and Bioelectronics
Volume141
DOIs
Publication statusPublished - 2019 Sep 15

Fingerprint

Bioelectric Energy Sources
Biological fuel cells
Carbon Nanotubes
Textiles
Glucose
Carbon nanotubes
Enzymes
Fibers
Composite materials
bilirubin oxidase
Electrodes
Glucose 1-Dehydrogenase
Sweat
Hydrogel
Hydrogels
Cotton
Carbon fibers
Light emitting diodes
Oxygen
Anodes

Keywords

  • Bioelectrode
  • Biofuel cell
  • Enzyme-nanotube hybrid
  • Series-connection
  • Wearable power source

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Biomedical Engineering
  • Electrochemistry

Cite this

Wearable high-powered biofuel cells using enzyme/carbon nanotube composite fibers on textile cloth. / Yin, Sijie; Jin, Zewen; Miyake, Takeo.

In: Biosensors and Bioelectronics, Vol. 141, 111471, 15.09.2019.

Research output: Contribution to journalArticle

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