Electrified Snail

Enzyme-coated electrodes turn the tiny invertebrate into a powerful fuel cell.

Written byJef Akst
| 1 min read

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AMERICAN CHEMICAL SOCIETY

Turning living organisms into electricity-generating “devices” that could power small electronics, such as pacemakers, insulin pumps, even spy cameras and eavesdropping microphones. While “such bioelectronic systems are still exotic and very challenging to design,” wrote the authors of a new report published last week (May 23) in the Journal of the American Chemical Society, it has been successfully achieved in a handful of organisms, including cockroaches, rats, rabbits—and now snails.

The new snail system consists of two enzyme-coated electrodes that penetrated the animal’s shell—one that converts glucose to electrons, and another to take up those electrons and donate them to the positive ions ciriculating the in the snail’s hemolymph (blood). The voltage difference generated between the electrodes is 0.53 volts, which can generate power of ...

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  • Jef (an unusual nickname for Jennifer) got her master’s degree from Indiana University in April 2009 studying the mating behavior of seahorses. After four years of diving off the Gulf Coast of Tampa and performing behavioral experiments at the Tennessee Aquarium in Chattanooga, she left research to pursue a career in science writing. As The Scientist's managing editor, Jef edited features and oversaw the production of the TS Digest and quarterly print magazine. In 2022, her feature on uterus transplantation earned first place in the trade category of the Awards for Excellence in Health Care Journalism. She is a member of the National Association of Science Writers.

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