A microscopic fan-shaped assembly of precious metal and plastic could assist diagnosis, drug development and semiconductor manufacture
Inhaling diesel exhaust at levels typically found in large cities may disrupt normal blood vessel and clotting activity.
A new lithium metal battery can be charged and discharged at least 6,000 times and be recharged in minutes, claim researchers in the US.
Implantable medical devices such as pacemakers could one day be powered by a glucose-powered biofuel cell that uses electrodes made from cotton fibre.
