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DNA‐Based Adaptive Plasmonic Logic Gates
Author(s) -
Dong Jinyi,
Wang Meng,
Zhou Yihao,
Zhou Chao,
Wang Qiangbin
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202006029
Subject(s) - logic gate , dna computing , function (biology) , and gate , plasmon , pass transistor logic , nor logic , computer science , logic family , logic synthesis , physics , algorithm , optoelectronics , electronic circuit , quantum mechanics , digital electronics , biology , evolutionary biology , computation
Self‐assembled plasmonic logic gates that read DNA molecules as input and return plasmonic chiroptical signals as outputs are reported. Such logic gates are achieved on a DNA‐based platform that logically regulate the conformation of a chiral plasmonic nanostructure, upon specific input DNA strands and internal computing units. With systematical designs, a complete set of Boolean logical gates are realized. Intriguingly, the logic gates could be endowed with adaptiveness, so they can autonomously alter their logics when the environment changes. As a demonstration, a logic gate that performs AND function at body temperature while OR function at cold storage temperature is constructed. In addition, the plasmonic chiroptical output has three distinctive states, which makes a three‐state molecular logic gate readily achievable on this platform. Such DNA‐based plasmonic logic gates are envisioned to execute more complex tasks giving these unique characteristics.