Using starch and baking soda to harvest mechanical
energy

Scientists have used a compound made from a starch
derivative and baking soda to help convert mechanical energy to
electrical energy. The approach, developed by scientists at Daegu
Gyeongbuk Institute of Technology (DGIST), with colleagues in Korea
and India, is cost-effective and biocompatible, and can help charge
low-energy electronics like calculators and watches. The details
were published in the journal Advanced Functional
Materials.