By layering tiny nanospheres Ffxiv Gil onto stretchy fabric, scientistshave created a material that changes colour when stretched. Called polymer opal by the team, the material mimics themulticoloured brilliance of an opal gemstone.

Using ink made from synthetic photonic crystals and a printerthat can modulate voltage, the team has figured out how to printshimmering, colour-changing patterns onto a stretch of flexibleopal. The  new printing method was described on 22 Mayin Advanced Engineering Materials. 

You don't need different printing inks, said JeremyBaumberg, director of the Nanophotonics Centre at theUniversity of Cambridge. You can use one pot, and then change thecolour produced when you print it.







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