Enzymatic biofuel cell with self-regulating enzyme-nanotube ensemble films

Takeo Miyake, Syuhei Yoshino, Takeo Yamada, Kenji Hata, Matsuhiko Nishizawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nanostructured carbons have been widely used for fabricating enzyme-modified electrodes due to their large specific surface area. However, because they are random aggregates of particular or tubular nanocarbons, the post-modification of enzymes to their intra-nanospace is generally hard to control. Here, we describe a free-standing film of carbon nanotube forest (CNTF) that can form a hybrid ensemble with enzymes through liquid-induced shrinkage. This provides in-situ regulation of its intra-nanospace (inter CNT pitch) to the size of enzymes, and eventually serves as a highly active electrode. The CNTF ensemble with fructose dehydrogenase (FDH) showed the oxidation current density of 16 mA cm -2 in stirred 200 mM fructose solution. The power density of a biofuel cell using the FDH-CNTF anode and the Laccase-CNTF cathode reached 1.8 mW cm -2 (at 0.45 V) in the stirred oxygenic fructose solution, more than 80 % of which could be maintained after continuous operation for 24 h. Application of the free-standing, flexible character of the enzyme-CNTF ensemble electrodes is demonstrated via their use in the patch or wound form.

Original languageEnglish
Title of host publicationMEMS, BioMEMS and Bioelectronics - Materials and Devices
Pages87-92
Number of pages6
Volume1415
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2011 MRS Fall Meeting - Boston, MA
Duration: 2011 Nov 282011 Dec 3

Other

Other2011 MRS Fall Meeting
CityBoston, MA
Period11/11/2811/12/3

Fingerprint

Enzymatic fuel cells
Carbon Nanotubes
automatic control
Fructose
Nanotubes
enzymes
Carbon nanotubes
nanotubes
Enzymes
carbon nanotubes
cells
dehydrogenases
Electrodes
Oxidoreductases
electrodes
Biological fuel cells
Laccase
Specific surface area
Anodes
shrinkage

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Miyake, T., Yoshino, S., Yamada, T., Hata, K., & Nishizawa, M. (2012). Enzymatic biofuel cell with self-regulating enzyme-nanotube ensemble films. In MEMS, BioMEMS and Bioelectronics - Materials and Devices (Vol. 1415, pp. 87-92) https://doi.org/10.1557/opl.2012.208

Enzymatic biofuel cell with self-regulating enzyme-nanotube ensemble films. / Miyake, Takeo; Yoshino, Syuhei; Yamada, Takeo; Hata, Kenji; Nishizawa, Matsuhiko.

MEMS, BioMEMS and Bioelectronics - Materials and Devices. Vol. 1415 2012. p. 87-92.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Miyake, T, Yoshino, S, Yamada, T, Hata, K & Nishizawa, M 2012, Enzymatic biofuel cell with self-regulating enzyme-nanotube ensemble films. in MEMS, BioMEMS and Bioelectronics - Materials and Devices. vol. 1415, pp. 87-92, 2011 MRS Fall Meeting, Boston, MA, 11/11/28. https://doi.org/10.1557/opl.2012.208
Miyake T, Yoshino S, Yamada T, Hata K, Nishizawa M. Enzymatic biofuel cell with self-regulating enzyme-nanotube ensemble films. In MEMS, BioMEMS and Bioelectronics - Materials and Devices. Vol. 1415. 2012. p. 87-92 https://doi.org/10.1557/opl.2012.208
Miyake, Takeo ; Yoshino, Syuhei ; Yamada, Takeo ; Hata, Kenji ; Nishizawa, Matsuhiko. / Enzymatic biofuel cell with self-regulating enzyme-nanotube ensemble films. MEMS, BioMEMS and Bioelectronics - Materials and Devices. Vol. 1415 2012. pp. 87-92
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