June 01, 2026
A team of Japanese scientists led by Isao Shitanda, an associate professor at the Tokyo University of Science, has developed a paper-thin patch that harnesses sweat to produce electricity, which can power wearable technology. What makes the innovation unique is an advanced enzyme ink that can be conveniently printed onto paper, offering a simpler manufacturing process than similar innovations in the past. The patch has an enzyme biofuel cell that is a biological catalyst that interacts with electrons from lactate, a substance produced in sweat, which moves through the circuit, producing an electric charge. Each patch costs 10 cents (approximate ₹8) to create, making it economical for easy usage in large numbers.
Watch this video to learn why we sweat
