Art forgers could also suffer as nanotechnology takes invisible ink to a whole new level. Inks containing nanoparticles can be printed on paper, photographs or glass. Although invisible in daylight, these inks can be designed to fluoresce under specific UV light wavelengths, so original artworks can be marked with a unique and unalterable 'bar code'.
|Nanoparticle inks can be designed to fluoresce under specific UV light wavelengths.|
Image: Nanosolutions GmbH, Hamburg