Wednesday, November 02, 2011

US Patent 8048547 - Biological fuel cells with nanoporous membranes

This patent based on work done at the U.S. Naval Research Labs helps enable miniaturization of biological fuel cells for powering MEMS or NEMS sensor arrays. Claim 1 reads:

1. A fuel cell comprising:

an anode chamber,

a cathode chamber, and

a nanoporous membrane having a pore size from about 100 nm to about 1000 nm between the anode chamber and the cathode chamber,

wherein the nanoporous membrane sequesters a microbe in the anode chamber and wherein the nanoporous membrane allows nutrients to flow from the cathode chamber to the anode chamber.