Sustainable Bioresource‐Derived Components for Molecular Keypad Lock and IMPLICATION Logic Gate Construction

Renuka, Kizhisseri Devi; Lekshmi, C. Lalitha; Joseph, Kuruvilla; Mahesh, Sankarapillai

doi:10.1002/slct.201702020

Cited by 4 publications

(11 citation statements)

References 35 publications

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“…Figure 8a describes the isomerization of an azobenzene group functionalized on GQDs via hydrogen bonding [96]. Figure 8b describes the isomerization of an azobenzene group functionalized on GO via covalent bonding [97].…”

Section: Photoisomerization Of Gd-azo Compositesmentioning

confidence: 99%

“…The synthesis strategies for GO-AZO and GQDs-AZO composites are similar because they both have oxygen based functional groups on their surfaces. Renuka et al reported the formation of GQD-AZO composites through hydrogen bonding [96]. Both RGO-AZO hybrids showed an enhanced current value upon UV illumination due to the trans ⇌ cis isomerization of the azobenzene system.…”

Section: Hydrogen Bondingmentioning

confidence: 99%

“…The trans-state appears linear visually, and then conforms to the contracted cis state after absorbing energy in the form of light stimulation. Figure 8 a describes the isomerization of an azobenzene group functionalized on GQDs via hydrogen bonding [ 96 ]. Figure 8 b describes the isomerization of an azobenzene group functionalized on GO via covalent bonding [ 97 ].…”

Section: Properties Of Gds Azo-polymers and Gd-azo Compositesmentioning

confidence: 99%

“…In addition, photoinduced changes of GO-AZO promisingly endow GO with the ability of optical modulation controlled by isomerization. GQD-AZO composites also show similar photoisomerization properties as GO-AZO composites [ 96 ]. This subtle control over fundamental properties leads to the modulation of optoelectronic properties, such as charge generation and transfer, which dominate the operation of light-emitting diodes, organic solar cells, and molecular switches.…”

Section: Properties Of Gds Azo-polymers and Gd-azo Compositesmentioning

confidence: 99%

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Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

2021

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Graphene represents a new generation of materials which exhibit unique physicochemical properties such as high electron mobility, tunable optics, a large surface to volume ratio, and robust mechanical strength. These properties make graphene an ideal candidate for various optoelectronic, photonics, and sensing applications. In recent years, numerous efforts have been focused on azobenzene polymers (AZO-polymers) as photochromic molecular switches and thermal sensors because of their light-induced conformations and surface-relief structures. However, these polymers often exhibit drawbacks such as low photon storage lifetime and energy density. Additionally, AZO-polymers tend to aggregate even at moderate doping levels, which is detrimental to their optical response. These issues can be alleviated by incorporating graphene derivatives (GDs) into AZO-polymers to form orderly arranged molecules. GDs such as graphene oxide (GO), reduced graphene oxide (RGO), and graphene quantum dots (GQDs) can modulate the optical response, energy density, and photon storage capacity of these composites. Moreover, they have the potential to prevent aggregation and increase the mechanical strength of the azobenzene complexes. This review article summarizes and assesses literature on various strategies that may be used to incorporate GDs into azobenzene complexes. The review begins with a detailed analysis of structures and properties of GDs and azobenzene complexes. Then, important aspects of GD-azobenzene composites are discussed, including: (1) synthesis methods for GD-azobenzene composites, (2) structure and physicochemical properties of GD-azobenzene composites, (3) characterization techniques employed to analyze GD-azobenzene composites, and most importantly, (4) applications of these composites in various photonics and thermal devices. Finally, a conclusion and future scope are given to discuss remaining challenges facing GD-azobenzene composites in functional science engineering.

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Section: Photoisomerization Of Gd-azo Compositesmentioning

confidence: 99%

Section: Hydrogen Bondingmentioning

confidence: 99%

Section: Properties Of Gds Azo-polymers and Gd-azo Compositesmentioning

confidence: 99%

Section: Properties Of Gds Azo-polymers and Gd-azo Compositesmentioning

confidence: 99%

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Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

2021

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“…For some technical reasons this gate was ignored in digital electronics for many years, but recently interest to this gate has been returned based on its straightforward realization in memristive switches . The IMPLY logic gate has been realized in many chemical systems, including biomolecular systems based on DNA molecules, particularly operated as cell biology processes . However, the IMPLY gate was rarely demonstrated with enzyme‐catalyzed reactions …”

Section: Figurementioning

confidence: 99%

Implication and Inhibition Boolean Logic Gates Mimicked with Enzyme Reactions

2020

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The enzyme system mimicking Implication (IMPLY) and Inhibition (INHIB) Boolean logic gates has been designed. The same enzyme system was used to operate as the IMPLY or INHIB gate simply by reformulating the input signals. The optical analysis of the logic operation confirmed the output generation as expected for the studied logic gates. The conceptual approach to the IMPLY and INHIB logic gates allows their construction with many other enzymes operating in a similar way. Molecular [1-4] and biomolecular [5] computing, as a subarea of unconventional computing, [6] have attracted high attention and rapidly progressed in the last two decades. Enzyme-based logic systems, [7] together with DNA/RNA computing systems, [8-10] are the most important areas of research in the general framework of the biomolecular information processing systems. Enzymecatalyzed reactions, including sophisticated multi-step/multienzyme reaction cascades, have been used to mimic almost all known Boolean logic gates, [7,11] such as Yes (Identity), Not (Inversion), OR, NOR, XOR, NXOR, AND, NAND, INHIB, including reversible logic gates, [12,13] such as Feynman, Toffoli, Fredkin and Peres gates. While the vast majority of Boolean logic gates mimicked with enzyme systems have been already formulated, [7,11] optimized [14-17] and reported for various applications, [18-20] some unique logic operations still require additional studies. Particularly, Implication (IMPLY) logic gate (also named "material implication") has not achieved enough attention. This gate was first described more than 100 years ago and recognized as a basic logic operation. [21] For some technical reasons this gate was ignored in digital electronics for many years, but recently interest to this gate has been returned based on its straightforward realization in memristive switches. [22] The IMPLY logic gate has been realized in many chemical systems, [23-36] including biomolecular systems based on DNA molecules, [37-49] particularly operated as cell biology processes. [50] However, the IMPLY gate was rarely demonstrated with enzyme-catalyzed reactions. [51] The present study aimed at the general approach to the IMPLY logic gate. This approach allows the use of various

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Reconfigurable Implication and Inhibition Boolean logic gates based on NAD⁺‐dependent enzymes: Application to signal‐controlled biofuel cells and molecule release

Bollella

Kadambar

Melman

et al. 2021

Electrochemical Science Adv

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The Implication and Inhibition Boolean logic gates were realized using NAD+/NADH‐dependent dehydrogenases combined with hexokinase competing for biomolecule input signals. Both logic gates operated with the same enzyme composition and their reconfiguration was achieved simply by redefining the input signals. The output signals produced by the logic gates were analyzed optically and electrochemically, particularly using enzyme‐modified electrodes. The logically processed input signals were used to switch operation of a biofuel cell and activate a molecule release process.

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Sustainable Bioresource‐Derived Components for Molecular Keypad Lock and IMPLICATION Logic Gate Construction

Cited by 4 publications

References 35 publications

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

Implication and Inhibition Boolean Logic Gates Mimicked with Enzyme Reactions

Reconfigurable Implication and Inhibition Boolean logic gates based on NAD⁺‐dependent enzymes: Application to signal‐controlled biofuel cells and molecule release

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Sustainable Bioresource‐Derived Components for Molecular Keypad Lock and IMPLICATION Logic Gate Construction

Cited by 4 publications

References 35 publications

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

Strategies for Incorporating Graphene Oxides and Quantum Dots into Photoresponsive Azobenzenes for Photonics and Thermal Applications

Implication and Inhibition Boolean Logic Gates Mimicked with Enzyme Reactions

Reconfigurable Implication and Inhibition Boolean logic gates based on NAD+‐dependent enzymes: Application to signal‐controlled biofuel cells and molecule release

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Product

Resources

About

Reconfigurable Implication and Inhibition Boolean logic gates based on NAD⁺‐dependent enzymes: Application to signal‐controlled biofuel cells and molecule release