Biodegradable memory chip dissolves in water, survives 3,000 bends

Researchers at the Korea Institute of Science and Technology (KIST) have developed a biodegradable memory device that can reliably store data, endure over 3,000 bending cycles, and dissolve completely in water within three days. The device is based on a novel polymer called PCL-TEMPO, which combines polycaprolactone (a biodegradable material) with TEMPO, an organic molecule capable of electrical data storage. This innovation addresses the environmental challenge of electronic waste by offering a sustainable alternative that maintains strong data retention—distinguishing ON and OFF signals over one million cycles and retaining data for over 10,000 seconds—while also being fully biodegradable. A key feature of this technology is its biocompatibility and controlled degradation, making it suitable for medical implants that safely dissolve in the body after their function is complete, potentially eliminating the need for surgical removal and reducing healthcare costs. The device’s durability and performance under mechanical stress also open possibilities for disposable wearables, health monitors, and temporary military