Amazon fish has super-shield against piranhas

An "armoured" fish living in the Amazon has evolved a remarkable multi-layer defence against the voracious piranha, materials scientists reported Tuesday.

Implantable medical devices powered by the ear itself

Deep in the inner ear of mammals is a natural battery—a chamber filled with ions that produces an electrical potential to drive neural signals. In today's issue of the journal Nature Biotechnology, a team of researchers ...

Researchers turn asphaltene into graphene for composites

Asphaltenes, a byproduct of crude oil production, are a waste material with potential. Rice University scientists are determined to find it by converting the carbon-rich resource into useful graphene.

Ultra-high-strength metamaterial developed using graphene

New metamaterial has been developed exhibiting hundreds of times greater strength than pure metals. Researchers from KAIST have developed a composite nanomaterial. The nanomaterial consists of graphene inserted in copper ...

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