Nanomaterials - Consulting and education

deutsche Flagge englische Flagge chinesische Flagge
Dieter Vollath

Nanocomposites II

The oldest man-made nanocomposite, the „gold – ruby – glass“, was invented originally by the Sumerians, ca. 700 B.C. and re-invented by Kunkel in the 17th century.

The size of the gold particles is in the range from 20 to 50 nm.


Gold ruby red colored glass