Contrary logic pairs and circuits using a visually and colorimetrically detectable redox system consisting of MoO3-x nanodots and 3,3-diaminobenzidine
Contrary logic pairs and circuits using a visually and colorimetrically detectable redox system consisting of MoO3-x nanodots and 3,3-diaminobenzidine
复制标题
使用由 MoO3-x 纳米点和 3,3-二氨基联苯胺组成的视觉和比色可检测氧化还原系统的相反逻辑对和电路
DOI:
10.1007/s00604-018-3190-y
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发表时间:
2019-02-01
影响因子:
5.7
通讯作者:
He, Yi
中科院分区:
文献类型:
--
作者:
Huang, Wei;Wang, Jinhu;He, Yi
Logic systems that yield two or more signal outputs in the presence of the input are scarce. A universal logic system consisting of plasmonic MoO3-x nanodots and 3,3-diaminobenzidine (DAB) for fabrication of visual contrary logic pairs and circuits are presented here. They do not require the use of expensive instrumentation but can be visually read. It is based on the facts that the blue dispersion of MoO3-x nanodots turns to colorless after oxidation, while the colorless reagent DAB is oxidized by various oxidants to generate a brown color. On this basis, the complete contrary logic pairs and circuits such as YES-NOT, AND-NAND, OR-NOR, XOR-XNOR, INH-IMH, and MAJ-MIN can be fabricated. Various oxidants serve as inputs, and absorbances as outputs. A smart logic voting system with one-vote deny function is also described that is based on the cascade of MAJ logic circuit and INH logic gate using ascorbic acid (AA) as the superior denier. All the logic operations can visually read due to the appearance of distinct color changes.