Source: PIB
Context: To combat the increasing issue of counterfeiting, scientists at the Institute of Nano Science and Technology (INST) have developed a novel security ink based on luminescent nanomaterials.
About Luminescent Nanomaterials:
- Unique properties: These materials, doped with rare earth ions, exhibit luminescence that varies based on the wavelength of light they’re exposed to.
- Multi-color display: The ink shows vibrant blue under 365 nm UV light, pink under 395 nm, and orange-red under 980 nm near-infrared light, enhancing its security features.
- Durability: Remains effective under a wide range of light, temperature, and humidity conditions, making it ideal for long-term use.
Counterfeiting in Currency and Other Goods:
- Advanced security feature: Traditional covert tags are only visible under UV light and are easily duplicated. This new ink offers enhanced security with multi-wavelength color changes.
- Applications: Can be applied to various items to ensure authenticity, including currency, certificates, branded goods, and medicines.
- Ease of verification: Enables consumers and manufacturers to verify authenticity easily, offering a practical solution to counterfeiting.
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