Finger tingle

TA thin polymer film thermoelectric device can generate electricity from the temperature difference between your fingertips and the environment, according to Eunkyoung Kim from Yonsei University, South Korea and colleagues. The researchers have optimized the polymerization and electrochemical redox process to create conducting polymers based on poly(3,4-ethylenedioxythiophene) (PEDOT) with good electrical conductivity and relatively high thermoelectric properties, reporting a power factor of more than 1260 microwatts per meter per Kelvin squared. Such a device could be incorporated into clothing and use your body heat to charge your mobile phone, reports Chemistry World.