Air bio-battery with a gas/liquid porous diaphragm cell for medical and health care devices

Takahiro Arakawa, Rui Xie, Fumiya Seshima, Koji Toma, Kohji Mitsubayashi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Powering future generations of medical and health care devices mandates the transcutaneous transfer of energy or harvesting energy from the human body fluid. Glucose-driven bio fuel cells (bio-batteries) demonstrate promise as they produce electrical energy from glucose, which is a substrate presents in physiological fluids. Enzymatic biofuel cells can convert chemical energy into electrical energy using enzymes as catalysts. In this study, an air bio-battery was developed for healthcare and medical applications, consisting of a glucose-driven enzymatic biofuel cell using a direct gas-permeable membrane or a gas/liquid porous diaphragm. The power generation characteristics included a maximum current density of 285 μA/cm2 and maximum power density of 70.7 μW/cm2 in the presence of 5 mmol/L of glucose in solution. In addition, high-performance, long-term-stabilized power generation was achieved using the gas/liquid porous diaphragm for the reactions between oxygen and enzyme. This system can be powered using 5 mmol/L of glucose, the value of which is similar to that of the blood sugar range in humans.

Original languageEnglish
Pages (from-to)171-175
Number of pages5
JournalBiosensors and Bioelectronics
Volume103
DOIs
Publication statusPublished - 2018 Apr 30
Externally publishedYes

Keywords

  • Air bio-battery
  • Biofuel cell
  • Enzyme
  • Gas/liquid porous diaphragm
  • Glucose
  • Mediator

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Biomedical Engineering
  • Electrochemistry

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