Researchers have created a bacteria-powered battery on a single sheet of paper that can power disposable electronics.<\/p>\n
\nThe manufacturing technique reduces fabrication time and cost, and the design could revolutionize the use of bio-batteries as a power source in remote, dangerous and resource-limited areas, according to the scientists from Binghamton University, State University of New York.<\/p>\n
“Papertronics have recently emerged as a simple and low-cost way to power disposable point-of-care diagnostic sensors,” said Assistant Professor Seokheun Choi.<\/p>\n
“Stand-alone and self-sustained, paper-based, point-of-care devices are essential to providing effective and life-saving treatments in resource-limited settings,” Choi noted.<\/p>\n
On one half of a piece of chromatography paper, the researchers placed a ribbon of silver nitrate underneath a thin layer of wax to create a cathode.<\/p>\n
They then made a reservoir out of a conductive polymer on the other half of the paper, which acted as the anode.<\/p>\n
Once properly folded and a few drops of bacteria-filled liquid are added, the microbes’ cellular respiration powered the battery.<\/p>\n
“The device requires layers to include components, such as the anode, cathode and PEM (proton exchange membrane),” Choi explained.<\/p>\n
It would take millions of paper batteries to power a common 40-watt light bulb, but on the battlefield or in a disaster situation, usability and portability is paramount.<\/p>\n
The technique was described online in the journal Advanced Materials Technologies.\u2014IANS<\/p>\n
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