‘Off–on’ fluorescent sensors for physiological levels of magnesium ions based on photoinduced electron transfer (PET), which also behave as photoionic OR logic gates

1994 ◽  
Vol 0 (10) ◽  
pp. 1213-1214 ◽  
Author(s):  
A. Prasanna de Silva ◽  
H. Q. Nimal Gunaratne ◽  
Glenn E. M. Maguire
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Logic Gates ◽  
Fluorescent Sensors ◽  
Magnesium Ions

scholarly journals Fluorescent molecular logic gates based on photoinduced electron transfer (PET) driven by a combination of atomic and biomolecular inputs

2020 ◽  
Vol 56 (50) ◽  
pp. 6838-6841
Author(s):  
Glenn D. Wright ◽  
Chao-Yi Yao ◽  
Thomas S. Moody ◽  
A. Prasanna de Silva
Keyword(s):  
Electron Transfer ◽  
Computer Science ◽  
Photoinduced Electron Transfer ◽  
Logic Gates ◽  
Meeting Point ◽  
Molecular Logic ◽  
Molecular Logic Gates

A meeting point for entities from chemistry, enzymology and computer science.

A Unimolecular Half-Subtractor Based on Effective Photoinduced Electron Transfer and Intramolecular Charge Transfer Processes of 1,8-Naphthalimide Derivative

2010 ◽  
Vol 63 (2) ◽  
pp. 169 ◽  
Author(s):  
Bing Leng ◽  
He Tian
Keyword(s):  
Electron Transfer ◽  
Charge Transfer ◽  
Photoinduced Electron Transfer ◽  
Fluorescence Spectra ◽  
Intramolecular Charge Transfer ◽  
Logic Gates ◽  
Electron Transfer Process ◽  
Xor Gate ◽  
Fluorescence Characteristics ◽  
Chemical Inputs

We report a unimolecular system as a combinatorial logic half-subtractor based on a naphthalimide derivative. Chemical inputs (OH– and H+) can significantly change the absorption and fluorescence characteristics through modulating intramolecular charge transfer and photoinduced electron transfer process upon protonation or deprotonation of the molecule. An XOR gate is obtained following the absorbance variations at 485 nm, and an INHIBIT gate is induced when the output signal is monitored at 535 nm in the fluorescence spectra. Large differences in output signals allow unequivocal assignment of logic-0 and logic-1 of both logic gates, which may function in parallel to implement the half-subtractor.

Photoinduced electron transfer as a design concept for luminescent redox indicators

The Analyst ◽  
2015 ◽  
Vol 140 (22) ◽  
pp. 7487-7495 ◽  
Author(s):  
David C. Magri
Keyword(s):  
Electron Transfer ◽  
Environmental Analysis ◽  
Photoinduced Electron Transfer ◽  
Design Principle ◽  
Materials Science ◽  
Logic Gates ◽  
Redox Indicators ◽  
Biomedical Diagnostics ◽  
Corrosion Science ◽  
General Design Principle

The exploitation of photoinduced electron transfer as a general design principle for the development of luminescent redox indicators and logic gates is described. Potential future applications in biology, environmental analysis, biomedical diagnostics, corrosion science and materials science are mentioned.

scholarly journals Exploring N-BODIPYs as Privileged Scaffolds to Build Off/On Fluorescent Sensors by PET

Proceedings ◽  
2019 ◽  
Vol 41 (1) ◽  
pp. 54 ◽  
Author(s):  
César Ray ◽  
Christopher Schad ◽  
Edurne Avellanal-Zaballa ◽  
Florencio Moreno ◽  
Jorge Bañuelos ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Crown Ether ◽  
Photoinduced Electron Transfer ◽  
Fluorescent Sensors ◽  
Crown Ether Moiety ◽  
Boron Dipyrromethene ◽  
Privileged Scaffolds

A new N-boron dipyrromethene (N-BODIPY) substituted with a crown ether moiety has been synthesized by reaction of an F-BODIPY with a crown-ether-substituted bis(sulfonamide). The workability of this N-BODIPY as an off/on sensor for cations by modulation of a photoinduced electron transfer (PET) is explored. The new N-BODIPY demonstrates the possibilities of functionalization of these still unexplored but promising dyes.

scholarly journals Water-soluble naphthalimide-based ‘Pourbaix sensors’: pH and redox-activated fluorescent AND logic gates based on photoinduced electron transfer

2016 ◽  
Vol 40 (12) ◽  
pp. 9917-9922 ◽  
Author(s):  
Alex D. Johnson ◽  
Kyle A. Paterson ◽  
Jake C. Spiteri ◽  
Sergey A. Denisov ◽  
Gediminas Jonusauskas ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Redox Potential ◽  
Time Scale ◽  
Photoinduced Electron Transfer ◽  
Logic Gates ◽  
Water Soluble

Naphthalimide-based ‘Pourbaix sensors’ for redox potential and pH fluoresce with a lifetime of 8.5 ns while photoinduced electron transfer occurs on a time scale of 20 ps.

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