Saliva-powered batteries could be helpful in extreme conditions. The saliva-powered battery could be helpful in extreme conditions.
Researchers at Binghamton University, State University of New York, on Aug 9 have developed a new high-performance battery. It is a paper-based battery powered by saliva that can be used in extreme conditions where normal batteries do not function. From one drop of saliva, these saliva-powered batteries can generate reliable power. They are capable of supplying onboard power.These could be used by the next generation of disposable, paper-based Point of Care (POC) diagnostic platforms, researchers said.
The new research
For the last five years, Binghamton University Electrical and Computer Science Assistant Professor Seokheun Choi has focused on developing micro-power sources for the use in resource-limited regions to power point-of-care (POC) diagnostic biosensors; he has created several paper-based bacteria-powered batteries.
The battery has competitive advantages over other conventional power solutions. It is because the biological fluid for this on-demand battery activation is readily available. Even in the most resource-constrained settings, it i.The freeze-drying technology enables long-term storage of cells without degradation or denaturation.It was stated by Seokheun Choi, the professor at Binghamton University stated that on-demand micro-power generation is required especially for POC diagnostic applications in developing countries.
Typically, those applications require only several tens of microwatt-level power for several minutes. But commercial batteries or other energy harvesting technologies are too expensive and over-qualified. Also, they pose environmental pollution issues.
Although 16 microbial fuel cells connected in a series on a single sheet of paper, generate desired values of electrical current and voltage to power a light-emitting diode (LED), further power improvement is required for other electronic applications demanding hundreds of milliwatts of energy.The research was published in the journal Advanced Materials Technologies.
Currently, the battery can only produce a few microwatts of power per square centimeter. But the researchers are working on boosting the output. The microbial fuel cells can be connected in a series to power things like LED lights, but the team is also working on making the battery more robust in order to be able to power other devices.