Chinmaya IAS Academy – Current Affairs Chinmaya IAS Academy – Current Affairs
GS III-Security Context: Indian scientists have developed a nanoparticle-based security ink to enhance anti-counterfeiting measures. What is Security Printing? Used to prevent forgery in critical documents like banknotes, passports, and cheques. Features: Human-Detectable: Watermarks, holograms, optically variable ink. Machine-Detectable: RFID chips, digital watermarks, security threads. Role of Nanoparticles in Security …
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