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Implant Generates Electricity The implant is a thin, biodegradable film that dissolves in the body over time, but while it works, it can be powered by external ultrasound and glow under ultraviolet light, showing its status. The technology is based on the triboelectric effect, where two different materials come into contact and rub against each other, generating a static charge. Researchers embedded a molecule called Ir1b in a biopolymer, a luminescent material based on iridium, which they found and refined using machine learning. The Ir1b molecule was found to be approximately 1.8 times more efficient than regular luminescent materials in generating a triboelectric charge. The size of one molecule is just 1.3 nanometers. When an ultrasound of 20 kHz frequency is directed at the implant, it starts generating electricity: up to 3.6 V voltage and around 16 μA current. This is enough to power simple biomedical functions. The implant is almost invisible under the skin, but when exposed to a UV lamp, it starts glowing. In experiments on mice, the device's contour was clearly visible, and if the film was damaged, the glow disappeared, indicating that the implant was broken or displaced. This technology has potential, especially for devices like biosensors or drug delivery systems, where a battery can increase size, complicate design, and pose risks, as reported in Nature Aging, July 2026. 🔗 Read original →