A flexible, stretchable "battery" that can be attached to the skin. Pictures from the Internet
The US and European international research team recently developed a unique new flexible stretchable device that can be attached to the skin. It can generate electricity by changing the compounds in sweat, and can continuously light up LEDs (organic light-emitting diodes). Biofuel cell. This research opens up new ways to develop wearable electronic devices powered by autonomous and environmentally friendly bio-batteries. The related papers were published in the "Advanced Functional Materials" on the 25th.
The potential uses of wearable electronic devices are increasing, especially in medical and sports monitoring. Such equipment needs to develop a reliable and efficient energy that can be easily integrated into the human body. For a long time, the use of "biofuels" present in human organic liquids has been a promising direction.
The joint research team of the University of California, San Diego and the Grenoble Alpes University in France jointly developed a flexible conductive material composed of carbon nanotubes, cross-linked polymers and enzymes, connected by a stretchable connector, and connected by a wire Screen printing is directly printed on the material.
Following the skin deformation, the biofuel cell generates electricity by reducing the oxidation of oxygen and lactic acid present in sweat. Once applied to the arm, it uses a booster to continuously power the LED. The production of the fuel cell is relatively simple and cheap, the main cost is the production of enzymes that convert compounds in sweat. Researchers are now seeking to amplify the voltage provided by biofuel cells to power larger portable devices. (Reporter Feng Weidong)
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