Substantial power density from a discrete nano-scalable biofuel cell

Alokik Kanwal, Shiunchin C. Wang, Ye Ying, Ross Cohen, Shanmugamurthy Lakshmanan, Anitha Patlolla, Zafar Iqbal, Gordon A. Thomas, Reginald C. Farrow

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


A direct electron transfer biofuel cell consisting of a pair of single walled carbon nanotubes and enzymes on a single plane is reported, which allows for extremely close spacing of electrodes. The discrete device has a measured power and current density of 18 mW/cm2 and 90 mA/cm2, respectively, into 200 TΩ. Analysis of measurements from up to 3 million devices in parallel shows that the performance will improve by at least 2 orders of magnitude at peak power.

Original languageEnglish (US)
Pages (from-to)37-40
Number of pages4
JournalElectrochemistry Communications
StatePublished - Feb 2014

All Science Journal Classification (ASJC) codes

  • Electrochemistry


  • Biofuel cell
  • Carbon nanotubes
  • Direct electron transfer
  • Energy


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