Nanotech Security Corp is a Canadian company that specializes in the production of secure and memorable security labels, stripes, patches, and colour-shifting films for currency authentication and brand protection. The company's patented technology, KolourOptik®, combines sub-wavelength nanostructures and microstructures to create modern overt security features with a unique and customizable visual effect. These features include full colour, 3D depth, and movement used in security stripes and threads that are nearly impossible to replicate. At less than 5 microns thick, the KolourOptik products seamlessly integrate into banknotes and other secure government documents. Nanotech's LiveOptik™ is another patented technology that delivers multi-colour, 3D depth, movement, and image switches for secure brand protection stripes, threads, and labels that are nearly impossible to replicate.