منابع مشابه
All-Photonic Molecular Keypad Lock
Herein we demonstrate a molecular triad (1, Figure 1) comprising two photochromic units and a fluorescent porphyrin reporter that functions as an all-photonic keypad lock. The lock is a molecular automaton that opens only when exposed to one out of 8 possible 2-digit codes, can be reset many times, and can be activated remotely. Investigations of molecular approaches to logic operations began w...
متن کاملA supramolecular keypad lock.
The reversible photoswitching between an anthracene derivative and its [4+4] dimer, using the template effect of the CB8 macrocycle, was demonstrated. This example of supramolecular chemistry in water was harnessed to demonstrate the operation of a keypad lock device that is driven by means of light and chemicals as inputs.
متن کاملMolecular all-photonic encoder-decoder.
In data processing, an encoder can compress digital information for transmission or storage, whereas a decoder recovers the information in its original form. We report a molecular triad consisting of a dithienylethene covalently linked to two fulgimide photochromes that performs as an all-photonic single-bit 4-to-2 encoder and 2-to-4 decoder. The encoder compresses the information contained in ...
متن کاملAll-photonic molecular half-adder.
One molecule acts as both an AND and an XOR Boolean logic gate that share the same two photonic inputs. The molecule comprises a half-adder, adding two binary digits with only light as inputs and outputs, and consists of three covalently linked photochromic moieties, a spiropyran and two quinoline-derived dihydroindolizines. The AND function is based on the absorption properties of the molecule...
متن کاملA molecular keypad lock: a photochemical device capable of authorizing password entries.
This paper describes a new concept in the way information can be protected at the molecular scale. By harnessing the principles of molecular Boolean logic, we have designed a molecular device that mimics the operation of an electronic keypad lock, e.g., a common security circuit used for numerous applications, in which access to an object or data is to be restricted to a limited number of perso...
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ژورنال
عنوان ژورنال: Chemistry - A European Journal
سال: 2009
ISSN: 0947-6539,1521-3765
DOI: 10.1002/chem.200900043