Scientists have developed of a biodegradable nano generator made with DNA that can harvest the energy from everyday motion and turn it into electrical power.
Piesoelectric devcies have been around for some time. Many people may not realize it, but the movements we often take for granted — such as walking and tapping on our keyboards — release energy that largely dissipates, unused. Several years ago, scientists figured out how to capture some of that energy and convert it into electricity (piesoelectric) so we might one day use it to power our mobile gadgetry. Achieving this would not only untether us from wall outlets, but it would also reduce our demand on fossil-fuel-based power sources. The first prototypes of these nano generators are currently being developed in laboratories around the world.
Most do not have very high efficiency and can be very expensive. And now, one group of scientists wants to add another feature to this technology: biodegradability. (I am not sure if i want that feature I want them to last)
The researchers built a nano generator using a flexible, bio compatible polymer film made out of polyvinylidene fluoride, or PVDF. To improve the material’s energy-harvesting ability, they added DNA, which has good electrical properties and is bio compatible and biodegradable. Their device was powered with gentle tapping, and it lit up 22 to 55 light-emitting diodes.
The report appears in the journal ACS Applied Materials & Interfaces
The authors acknowledge funding from the Science and Engineering Research Board of India.
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 158,000 members, ACS is the world’s largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.