Switching between porphyrin, porphodimethene and porphyrinogen using cyanide and fluoride ions mimicking volatile molecular memory and the ‘NOR’ logic gate

2016 ◽  
Vol 45 (41) ◽  
pp. 16404-16412 ◽  
Author(s):  
Mandeep K. Chahal ◽  
Muniappan Sankar
Keyword(s):  
Logic Gate ◽  
Molecular Memory ◽  
Fluoride Ions ◽  
Colour Changes ◽  
Distinct Solution ◽  
Nor Logic Gate

β-Substituted porphyrins were developed as a quantitatively operating “lab-on-a-molecule” for the detection of F−and CN−ions, by switching between porphyrin, porphodimethene and porphyrinogen along with distinct solution colour changes and reversibility.

Rapid Single-Flux-Quantum NOR Logic Gate Realized through the Use of Toggle Storage Loop

2020 ◽  
Vol E103.C (10) ◽  
pp. 547-549
Author(s):  
Yoshinao MIZUGAKI ◽  
Koki YAMAZAKI ◽  
Hiroshi SHIMADA
Keyword(s):  
Logic Gate ◽  
Flux Quantum ◽  
Rapid Single Flux Quantum ◽  
Nor Logic Gate

Implementation of a logic gate by chemically induced nitrogen and oxygen rich C-dots for the selective detection of fluoride ions

2018 ◽  
Vol 42 (14) ◽  
pp. 12162-12171 ◽  
Author(s):  
Shagun Kainth ◽  
Akansha Mehta ◽  
Amit Mishra ◽  
Soumen Basu
Keyword(s):  
Logic Gate ◽  
Ecological System ◽  
Selective Detection ◽  
High Toxicity ◽  
Fluoride Ions ◽  
Chemically Induced

The widespread pollution of fluoride ions in the environment badly affects the ecological system due to their high toxicity, mobility and the difficulty of their degradation.

scholarly journals Lanthanide luminescent logic gate mimics in soft matter: [H+] and [F−] dual-input device in a polymer gel with potential for selective component release

2015 ◽  
Vol 51 (92) ◽  
pp. 16565-16568 ◽  
Author(s):  
Samuel J. Bradberry ◽  
Joseph P. Byrne ◽  
Colin P. McCoy ◽  
Thorfinnur Gunnlaugsson
Keyword(s):  
Soft Matter ◽  
Logic Gate ◽  
Logic Circuit ◽  
Input Device ◽  
Polymer Gel ◽  
Naked Eye ◽  
Eye Colour ◽  
Colour Changes

Non-covalent incorporation of responsive luminescent lanthanide into a polymer gel produces three-output logic circuit with significant naked-eye colour changes.

Demonstration of a NOR logic gate using a single molecule and two surface gold atoms to encode the logical input

2011 ◽  
Vol 83 (15) ◽  
Author(s):  
W.-H. Soe ◽  
C. Manzano ◽  
A. De Sarkar ◽  
F. Ample ◽  
N. Chandrasekhar ◽  
...  
Keyword(s):  
Single Molecule ◽  
Logic Gate ◽  
Nor Logic Gate

Integrated all-optical 4-input NOR logic gate based on InP technology

2012 ◽  
Author(s):  
Miguel Cabezón ◽  
Asier Villafranca ◽  
David Izquierdo ◽  
Juan J. Martínez ◽  
Ignacio Garcés
Keyword(s):  
Logic Gate ◽  
All Optical ◽  
Nor Logic Gate

Rational Design of Azo-Azomethine Receptors for Sensing of Inorganic Fluoride: Construction of Molecular Logic Gates and DFT Study

2017 ◽  
Vol 70 (12) ◽  
pp. 1254
Author(s):  
Hamid Khanmohammadi ◽  
Khatereh Rezaeian ◽  
Nafiseh Shabani
Keyword(s):  
Density Functional ◽  
Rational Design ◽  
Condensation Reaction ◽  
Logic Gate ◽  
Logic Gates ◽  
Inorganic Fluoride ◽  
Fluoride Ions ◽  
Molecular Logic Gates ◽  
Sensitivity And Selectivity ◽  
Chemical Inputs

New azo-azomethine receptors, HLn (n = 1–3), have been synthesised via condensation reaction of 5-(4-X-phenyl)-azo-salicylaldehyde (X = NO2, Cl and CH3) with (4-nitrobenzylidene)hydrazine. The receptor with a p-NO2 substituent on the aromatic ring of the azo moiety (HL1) has excellent sensitivity and selectivity towards basic anions with proper discrimination between F− and AcO− or H2PO4− in DMSO–water (4 : 1). A Job’s plot displays a 1 : 1 stoichiometry between HL1 and F− alone with a detection limit of 0.737 μM for fluoride ions. The solvatochromic behaviour of HL1 was probed by studying its UV-vis spectra in four pure organic solvents of different polarities and a meaningful correlation was observed. Furthermore, HL1 was used for detection of inorganic fluoride in toothpaste. The systematic density functional theory (DFT) and time dependent-DFT calculations have been carried out to investigate the mechanism of colourimetric sensing of fluoride ion by HL1 in the gas phase and in solution. Moreover, by using F− and H+ as chemical inputs, and the absorbance as output, a INHIBIT logic gate was constructed, which exhibits ‘Write–Read–Erase–Read’ ability without obvious degradation in its optical output.

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