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A Supramolecular Counter Circuit Based on Cyanine Dye Assembly
Author(s) -
Chen Die,
Wu Zhiming,
Xu Xiaoping,
Yang Shu
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202001240
Subject(s) - computer science , supramolecular chemistry , flexibility (engineering) , electronic circuit , sequential logic , logic gate , combinational logic , adder , computation , electronic engineering , computer architecture , computer engineering , chemistry , algorithm , mathematics , engineering , electrical engineering , molecule , latency (audio) , telecommunications , statistics , organic chemistry
Molecular computation, a rapidly developing multidisciplinary research field, has attracted increasing attention. A series of combinational logic circuits at the molecular level have been constructed, however, the development of sequential logic circuits is still in its infancy due to the lack of ideal design tools. Taking advantage of unique assembly behaviors of cyanine dyes, we constructed a two‐bit molecular counter circuit that can implement fundamental sequential logic functions, including number cumulating and descending. Further introducing a guanine‐rich DNA strand as the cycle index, the counter can be reused several times and eventually be scaled up to count up to 16 numbers. The supramolecular circuit shows high programmability, flexibility, and reversibility, and it is prospected that the strategy would be applied in designing other advanced molecular circuits.