Photoinduced Electron Transfer in Ionic Liquids:  Use of 2,4,6-Triphenylthiapyrylium as a Photosensitizer Probe

2006 ◽  
Vol 110 (30) ◽  
pp. 14956-14960 ◽  
Author(s):  
Séverine Marquis ◽  
Belén Ferrer ◽  
Mercedes Alvaro ◽  
Hermenegildo García ◽  
Heinz D. Roth
Keyword(s):  
Electron Transfer ◽  
Ionic Liquids ◽  
Photoinduced Electron Transfer

Effect of Ionic Liquids as Cosurfactants on Photoinduced Electron Transfer in Tetronic Micelles

2018 ◽  
Vol 122 (44) ◽  
pp. 10190-10201 ◽  
Author(s):  
Papu Samanta ◽  
Pritesh Halder ◽  
Pratap Bahadur ◽  
Sharmistha Dutta Choudhury ◽  
Haridas Pal
Keyword(s):  
Electron Transfer ◽  
Ionic Liquids ◽  
Photoinduced Electron Transfer

Influence of Chiral Ionic Liquids on Stereoselective Fluorescence Quenching by Photoinduced Electron Transfer in a Naproxen Dyad

2009 ◽  
Vol 113 (31) ◽  
pp. 10825-10829 ◽  
Author(s):  
Sayantan Bose ◽  
Aruna B. Wijeratne ◽  
Aniket Thite ◽  
George A. Kraus ◽  
Daniel W. Armstrong ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ionic Liquids ◽  
Fluorescence Quenching ◽  
Photoinduced Electron Transfer ◽  
Chiral Ionic Liquids

The Effect of Pre-solvation in the Ground State on Photoinduced Electron Transfer in Ionic Liquids

2014 ◽  
Vol 43 (9-10) ◽  
pp. 1550-1560 ◽  
Author(s):  
Masayasu Muramatsu ◽  
Satoe Morishima ◽  
Tetsuro Katayama ◽  
Syoji Ito ◽  
Yutaka Nagasawa ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ionic Liquids ◽  
Ground State ◽  
Photoinduced Electron Transfer

Computationally Assisted Design of High Signal-to-Noise Photoinduced Electron Transfer-Based Voltage-Sensitive Dyes

2020 ◽  
Author(s):  
Rishikesh Kulkarni ◽  
Anneliese Gest ◽  
Chun Kei Lam ◽  
Benjamin Raliski ◽  
Feroz James ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Dft Calculations ◽  
Photoinduced Electron Transfer ◽  
Density Functional ◽  
Embryonic Stem ◽  
High Sensitivity ◽  
Md Simulations ◽  
High Signal ◽  
Signal To Noise ◽  
Green Fluorescent

<p>High signal-to-noise optical voltage indicators will enable simultaneous interrogation of membrane potential in large ensembles of neurons. However, design principles for voltage sensors with high sensitivity and brightness remain elusive, limiting the applicability of voltage imaging. In this paper, we use molecular dynamics (MD) simulations and density functional theory (DFT) calculations to guide the design of a bright and sensitive green-fluorescent voltage-sensitive fluorophore, or VoltageFluor (VF dye), that uses photoinduced electron transfer (PeT) as a voltage-sensing mechanism. MD simulations predict an 11% increase in sensitivity due to membrane orientation, while DFT calculations predict an increase in fluorescence quantum yield, but a decrease in sensitivity due to a decrease in rate of PeT. We confirm these predictions by synthesizing a new VF dye and demonstrating that it displays the expected improvements by doubling the brightness and retaining similar sensitivity to prior VF dyes. Combining theoretical predictions and experimental validation has resulted in the synthesis of the highest signal-to-noise green VF dye to date. We use this new voltage indicator to monitor the electrophysiological maturation of human embryonic stem cell-derived medium spiny neurons. </p>

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