Air-purifying church windows early nanotechnology

Associate Professor Zhu Huai Yong, from QUT’s School of Physical and Chemical Sciences said that glaziers in medieval forges were the first nanotechnologists who produced colours with gold nanoparticles of different sizes. Professor Zhu said numerous church windows across Europe were decorated with glass coloured in gold nanoparticles. “For centuries people appreciated only the beautiful works of art, and long life of the colours, but...