By calculating the number of valence electron shell, we can gain the geometry array of the electronic pair, and then judge the molecular structures.

Over the past seven years, surgeons have pioneered electronic implants that are attached to the retina and are linked by wire to a small external camera that is mounted to a pair of spectacles.

In a paper recently published in Nature Materials the pair explained how they placed one of Dr Rogers's silk-supported electronic meshes on the exposed brain of an anaesthetised cat.