Metamaterial

A metamaterial is a material whose macroscopic properties are not determined by the chemical elements it is made of but by the way it is structured on a small scale.

Atomically precise metamaterials have control over the structure at the lowest physically possible level. They open up a new world of materials far beyond the ones we have today. Some proposals for new materials can be found on the diamondoid metamaterial page. Those are the basis for fairly advanced APM products. See: further improvement at technology level III.

Wikipedia: [1]