Interactions between Quantum Mixing and the Environmental Dynamics Controlling Ultrafast Photoinduced Electron Transfer and Its Temperature Dependence

2013 ◽  
Vol 42 (11) ◽  
pp. 1406-1408 ◽  
Author(s):  
Akihito Ishizaki
Keyword(s):  
Electron Transfer ◽  
Temperature Dependence ◽  
Photoinduced Electron Transfer

Superexchange in the fast lane – intramolecular electron transfer in a molecular triad occurs by conformationally gated superexchange

2019 ◽  
Vol 55 (36) ◽  
pp. 5251-5254 ◽  
Author(s):  
Yusen Luo ◽  
Maria Wächtler ◽  
Kevin Barthelmes ◽  
Andreas Winter ◽  
Ulrich S. Schubert ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Temperature Dependence ◽  
Photoinduced Electron Transfer ◽  
Intramolecular Electron Transfer ◽  
Fast Lane

Photoinduced electron transfer via hopping is generally considered to have a stronger temperature dependence than electron transfer via superexchange.

Energy Gap and Temperature Dependence of Photoinduced Electron Transfer in Porphyrin-Quinone Cyclophanes

1994 ◽  
Vol 98 (30) ◽  
pp. 7402-7410 ◽  
Author(s):  
H. Heitele ◽  
F. Poellinger ◽  
T. Haeberle ◽  
M. E. Michel-Beyerle ◽  
H. A. Staab
Keyword(s):  
Electron Transfer ◽  
Temperature Dependence ◽  
Photoinduced Electron Transfer ◽  
Energy Gap

Temperature dependence of photoinduced electron transfer within self-associated porphyrin: guanine monophosphate complexes

2001 ◽  
Vol 350 (5-6) ◽  
pp. 515-521 ◽  
Author(s):  
Ravi Jasuja ◽  
Theodore L. Hazlett ◽  
Michael K. Helms ◽  
Suk-Hyung Lee ◽  
David M. Jameson ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Temperature Dependence ◽  
Photoinduced Electron Transfer

Temperature Dependence of Photoinduced Electron Transfer within Self-Assembled Uroporphyrin−CytochromecComplexes

2000 ◽  
Vol 104 (5) ◽  
pp. 973-977 ◽  
Author(s):  
John C. Croney ◽  
Michael K. Helms ◽  
David M. Jameson ◽  
Randy W. Larsen
Keyword(s):  
Electron Transfer ◽  
Temperature Dependence ◽  
Photoinduced Electron Transfer ◽  
Self Assembled

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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