The Chemistry Behind the First Molecular Keypad Lock

A Molecular Keypad Lock: A Photochemical Device Capable of Authorizing Password Entries. ‘How can defense or intelligence agencies safeguard the security of top-secret data protected by a computation device the size of a single molecule?
With cryptography approaching that sobering new era, scientists in Israel are reporting development of what they term the first molecular system capable of processing password entries. Abraham Shanzer and colleagues describe their “molecular keypad lock” in the Jan. 17 issue of the weekly Journal of the American Chemical Society. Electronic keypad locks long have been fixtures on home security systems and other devices that require a password. The new study, however, describes a keypad lock based on molecules that fluoresce only in response to the correct sequences of three input signals.’



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