Microfluidic biofuel cells: Series-connection with superhydrophobic air valves

M. Togo, K. Morimoto, T. Abe, H. Kaji, M. Nishizawa

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

3 Citations (Scopus)

Abstract

We report the construction of microfluidic biofuel cells connected in series by semiautomatic air valves, in which a lotus leaf-like superhydrophobic structure (a micropillar array) traps air and ionically isolates each biofuel cell aligned within the channel. The micropillar array was prepared by conventional photolithography and reactive ion etching (RIE) techniques, and the structural parameters of the micropillars (size and spacing) were optimized as to obtain the highest degree of hydrophobicity. The open-circuit voltage measured at the ends of three aligned biofuel cells was three times larger than that of a single cell using the semiautomatic air valve system.

Original languageEnglish
Title of host publicationTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Pages2102-2105
Number of pages4
DOIs
Publication statusPublished - 2009 Dec 11
EventTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems - Denver, CO, United States
Duration: 2009 Jun 212009 Jun 25

Publication series

NameTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems

Other

OtherTRANSDUCERS 2009 - 15th International Conference on Solid-State Sensors, Actuators and Microsystems
Country/TerritoryUnited States
CityDenver, CO
Period09/6/2109/6/25

Keywords

  • Biofuel cell
  • Microfabrication
  • Microfluidics
  • Superhydrophobic surface

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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