China, Tianjin-Researchers at Nankai University have 3D-printed soft hydrogel thermocell “power patches” that can hug skin and devices, turning gentle temperature differences into electricity. By Combining 3D printing and immersion activation strategies, they “sculpt” microstructured hydrogel thermocell surfaces that grip rough, moving heat sources and boost power output several-fold. These patches can also serve as self-powered touch and motion sensors, suggesting that customizable wearable power supplies could quietly harvest waste heat from bodies and irregular heat sources for future sustainable, human-integrated electronics.

A research team at the Center for Neuroscience Imaging Research (CNIR) within the Institute for Basic Science (IBS), together with Sungkyunkwan University (SKKU), has developed a new class of ultra-thin, flexible bioelectronic material that can seamlessly interface with living tissues. The researchers introduced a novel device called THIN (Transformable and Imperceptible Hydrogel-Elastomer Ionic-Electronic Nanomembrane). THIN is a membrane just 350 nanometers thick that transforms from a dry, rigid film into an ultra-soft, tissue-like interface upon hydration.