Waste to Wonder: How Eggshells Power Green Tech

Ever thought trash could fuel tech? Eggshells, often discarded, are now key in making green, touch-sensitive devices. These e-skins detect pressure and touch without needing extra energy. The magic? A blend of eggshells and gelatin. This mix crafts flexible, single-electrode triboelectric nanogenerators (S-TENGs). They generate electricity from simple actions, like tapping. Eggshells boost output, making them twice as effective as gelatin alone.These e-skins produce a peak power density of about 34 W/m². They respond to pressure in just 0. 4 milliseconds, perfect for precise touch sensing. Plus, they can communicate using Morse code. When their job is done, these devices break down safely. They can biodegrade in soil or PBS solutions. This innovation shows how waste can be transformed into something valuable. It's a big step for eco-friendly tech. By reusing waste, we can create useful tools and protect the planet. It's a smart way to merge tech and sustainability.