Guinness World Records Limited has just named ETH Zurich and their spin off company Scrona Ltd. as the official World Record Holders for the smallest inkjet-printed colour image. The image, about the same size as a cross-sectional area of a human hair, was created using new 3D NanoDrip printing technology. The technology works by depositing individually colored quantum-dots (QDs), like an inkjet printer depositioning color inks, at a resolution of 25'000 DPI, of the inter-pixel distance of 500 nanometers. Scrona is offering custom printed micro-images by backing their new credit card sized electronic microscope called the µPeek currently being sold on Kickstarter. Check out more details at 3DPrint.com: http://3dprint.com/111481/smallest-p...-ever-printed/