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UGA researchers achieve breakthrough in effort to develop tiny biological fuel cells
Date:6/19/2009

opening up the possibility for various uses in electronic devices such as sensors, transistors and diodes." The ultra-thin films are between 5 and 50 nanometerstoo small to see, even under a high-powered optical microscope.

Locklin said it's difficult to harness a fuel source in the body, such as glucose, for use in biofuel cells that could replace the need for batteries in an implanted device. And while humans have enzymes in the body that do a good job of converting chemical energy into electrical energy, "they aren't very useful in this application because they have natural protective insulating layers that prevent good electron transport from active site to electrode," he said. "Hopefully our molecular wires will provide a better conduit for charges to flow."

While "flexible electronics" is a large and growing area of research, it's still in its infancy, Locklin said. "For example, we don't yet understand all of the fundamental physics involved in how electrical charges move through organic materials."

The next step for Locklin is to develop appropriate applications. For example, his polymer brush technique might be used in a range of devices that interface with living tissue, such as biochemical sensors, prosthetic limbs, pacemakers or bionic ears. "The film itself might be used in transistorsor in photovoltaic devices such as solar cells," said Locklin.


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Contact: Jason Locklin
jlocklin@chem.uga.edu
706-542-2359
University of Georgia
Source:Eurekalert

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