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DNA-Based Adaptive Plasmonic Logic Gates |
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| Authors: | Jinyi Dong Meng Wang Yihao Zhou Dr. Chao Zhou Prof. Dr. Qiangbin Wang |
| Affiliation: | 1. CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine andi-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 P. R. China School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 P. R. China These authors contributed equally to this work.;2. College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, 210023 P. R. China These authors contributed equally to this work.;3. CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine andi-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 P. R. China |
| Abstract: | 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. |
| Keywords: | adaptiveness DNA nanotechnology logic gate plasmonic chirality |