Advances in Applications of Molecular Logic Gates

Abstract

Logic gates are devices that can perform Boolean logic operations and are the basic components of integrated circuits for information processing and storage. In recent years, molecular logic gates are gradually replacing traditional silicon-based electronic computers with their significant advantages and are used in research in water quality monitoring, heavy metal ion detection, disease diagnosis and treatment, food safety detection, and biological sensors. Logic gates at the molecular level have broad development prospects and huge development potential. In this review, the development and application of logic gates in various fields are used as the entry point to discuss the research progress of logic gates and logic circuits. At the same time, the application of logic gates in quite a few emerging fields is briefly summarized and predicted.

A Novel Turn-On Fluorescence Probe Based on Cu(II) Functionalized Metal–Organic Frameworks for Visual Detection of Uric Acid

“…The XPS patterns of Tb-MOFs, Cu 2+ @Tb-MOFs and UA/Cu 2+ @Tb-MOFs are shown in Figure 4 . After the introduction of UA, the peak position of Cu 2p of UA/Cu 2+ @Tb-MOFs exhibits a higher binding energy (932.5 and 952.5 eV) compared to that of Cu 2+ @Tb-MOFs (932.0 and 952.0 eV) ( Figure 4 b,c), which is also direct proof of the interaction between Cu 2+ and UA in Cu 2+ @Tb-MOFs [ 34 ]; whereas, a new peak position of N 1s ( Figure 4 d) appeared in the XPS sub-peak of UA/Cu 2+ @Tb-MOFs. Considering N element does not exist in Cu 2+ @Tb-MOFs structure, the signal of N 1s of UA/Cu 2+ @Tb-MOFs could be caused by the addition of uric acid ( Figure S8 ), giving another powerful proof of successful coordination.…”

“…Logic gates are the basic components of integrated circuits for information processing and storage [ 32 , 33 ]. If molecules are used to describe the input and output signals in a logic gate and thus realize the logic operations at the molecular level, such a logic system is called a molecular logic gate [ 34 , 35 ]. In recent years, the field has evolved from a single physical or chemical input to a combinatorial and sequential operation, showing great potential and broad promise.…”

Theoretical possibilities of head transplant

“…More suitable chemical and electronic technologies viz. molecular logic gates [23], electronic circuit design [22], etc. may be used to make SCLCB more effective.…”

Molecular logic operations from complex coacervation with aggregation-induced emission characteristics

“…Molecular logic operations are performed via molecular logic gates based on the ‘digital’ molecular response to changes in the environment, 1–3 wherein one or more binary inputs produce a single binary output. 4 Molecular logic gates have been constructed and investigated owing to their fundamental roles in the integration, processing and storage of information, as well as a wide array of applications spanning biosensors, environmental monitoring, and diagnosis of diseases.…”

“…4 Molecular logic gates have been constructed and investigated owing to their fundamental roles in the integration, processing and storage of information, as well as a wide array of applications spanning biosensors, environmental monitoring, and diagnosis of diseases. 1 A wide array of materials have been used as the building blocks of molecular logic gates, including small molecules, 5–7 polymers, 8 coordination materials 9 and biological materials, 10,11 which can be triggered by inputs with distinctive nature, including physical, chemical and biological stimuli. 12 In particular, the eight basic logic operations with single input (‘Buffer’ 13–19 and ‘NOT’ 16–18 ) or two inputs (‘AND’, 5,13–16,19–24 ‘OR’, 13–15,17,22,23,25 ‘NAND’, 5,22–24,26,27 ‘NOR’, 17,22,23 ‘XOR’ 15,20,28,29 and ‘XNOR’ 28,30–33 ) have aroused broad interest.…”