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The Chinese scientist Prof. Gao Chao of Department of Polymer  Science and Engineering, Zhejiang University and team invented the  world's ever lightest material which might have a good role in pollution  control and purification.   It has a mass of 0.16 milligram, according to the Scientists which is less  denser than air. The previous record holder is an aerographite. The new material is 12 percent lighter than the previous one. It was made up of graphene which is a lightest compound of carbon. Aerogel is a low-density solid-state material derived from gel in which  the liquid component of the gel has been replaced with gas. The result  is an extremely low density solid with several remarkable properties.

Graphene, the world's thinnest and toughest material, could spur the development of next generation computer chips, besides revolutionising materials science.Its amazing properties open the way to bendable touch screen phones and computers, lighter aircraft, paper thin HD TV sets and lightning-quick net connections, and more. Graphene is an allotrope of carbon, whose structure is one-atom-thick planar sheets of sp2-bonded carbon atoms that are densely packed in a honeycomb crystal lattice or arranged in a hexagonal pattern resembling chicken wire. In graphite, many flat graphene sheets are stacked together. The term graphene was coined as a combination of graphite and the suffix -ene by Hanns-Peter Boehm, who described single-layer carbon foils in 1962. Graphene is most easily visualized as an atomic-scale chicken wire made of carbon atoms and their bonds. The crystalline or "flake" form of graphite consists of many graphene sheets stacked together.Graphene transi...