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3D Printed Nanomaterial Shows Different Transparencies and Colours

3D Printed Nanomaterial Shows Different Transparencies and Colours

Written by David

March 2, 2019

57bf6f68-0d24-45ea-b06d-739906814361_Cup nanotechnology_e66b4df9_490x330 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 on the angle of the illumination. This effect is called dichroism. Now, scientists from Wageningen University & Research have 3D printed objects showing dichroic effect. This 21st-century invention was possible by synthesising special kinds of gold nanoparticles with different sizes. Those nanoparticles were then embedded in a common 3D printing material (PVA), available in any shop, and 3D printed with a standard off-the-shelf 3D printer. A bit of gold The amount of gold in the material is minute, a mere 0.07 weight percent. Such a small amount of gold doesn’t change the printability of the material, which remains the same as with normal […]


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