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3D printed nanomaterial shows different transparencies and colors (w/video)

( Nanowerk News ) Metallic nanoparticles have been used as glass colorant since the Roman Empire. One of the most famous piece of pottery from the Roman Empire is the Lycurgus cup. The nanoparticles embedded in this cup have an optical peculiarity as they present different colours depending by the angle of the illumination. This effect is called dichroism. Now, scientists from Wageningen University & Research have 3D printed objects showing dichroic effect ( Beilstein Journal of Nanotechnology , “Gold nanoparticles embedded in a polymer as a 3D-printable dichroic nanocomposite material” ). This 21th century invention was possible by synthesising special kind of gold nanoparticles with different sizes. Those nanoparticles were then embedded in a common 3D printing material (PVA), available in any shop and 3D print it with a standard, off the shelf 3D printer. A bit of gold The amount of gold in the material is minute, […]


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