Nanoparticles in Inks: Special inks containing nanoparticles are used to print visas. These inks can exhibit unique properties such as fluorescence or color-changing capabilities under different lighting conditions. Holographic Images: Nanotechnology enables the creation of intricate holographic images embedded within the visa. These images are extremely difficult to replicate without sophisticated equipment. Biometric Data: Nanotechnology facilitates the integration of biometric data, such as fingerprints and facial recognition, into visas. This ensures that the visa is uniquely tied to the individual it was issued to.
