Daniel: Nanoscale materials have some remarkable properties, hence the current nanotechnology revolution. For example, zinc oxide nanowires can turn mechanical energy into electrical energy such that electricity can be produced by bending and releasing the wires. Researchers from Prof. Zhong Wang’s research group at Georgia Institute of Technology in the USA hope to exploit this property to produce nanogenerators for application within the human body, harnessing the energy of muscle stretching/flexing and other body movements. Bundled arrays of millions of zinc oxide nanowires could potentially produce enough current to power implantable biomedical devices which would otherwise require conventional batteries, removing the need for bulky and inconvenient external power sources or internal sources which may need to be periodically exchanged. Could this mean we’ll never feel ‘flat’ again?