Photoinduced electron transfer in paraquat inclusion complexes of porphyrin-based receptors

2003 ◽  
Vol 27 (3) ◽  
pp. 551-559 ◽  
Author(s):  
Lucia Flamigni ◽  
Anna Maria Talarico ◽  
Maxwell J. Gunter ◽  
Martin R. Johnston ◽  
Tyrone P. Jeynes
Keyword(s):  
Electron Transfer ◽  
Inclusion Complexes ◽  
Photoinduced Electron Transfer

Photoinduced electron transfer in Nano-Saturn complexes of fullerene

2020 ◽  
Author(s):  
Olga A. Stasyuk ◽  
Anton J Stasyuk ◽  
Miquel Solà ◽  
Alexander Voityuk
Keyword(s):  
Electron Transfer ◽  
Inclusion Complexes ◽  
Photoinduced Electron Transfer ◽  
Aromatic Rings ◽  
Shaped Inclusion

The photoinduced electron transfer is studied computationally in several Saturn-shaped inclusion complexes of carbo-aromatic rings and C60 fullerene – C72⊃C60, C96⊃C60, C120⊃C60, and C168⊃C60. Analysis of their structural and electronic...

Photoinduced electron transfer in nanotube⊃C70 inclusion complexes: phenine vs. nanographene nanotubes

2020 ◽  
Vol 56 (83) ◽  
pp. 12624-12627
Author(s):  
Anton J. Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander A. Voityuk
Keyword(s):  
Electron Transfer ◽  
Electronic Properties ◽  
Inclusion Complexes ◽  
Photoinduced Electron Transfer ◽  
Guest Molecules ◽  
Vacancy Defects

The six-atom vacancy defects regularly located throughout the nanotubes change the electronic properties of their inclusion complexes with fullerene and prevent the photoinduced electron transfer between host and guest molecules.

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>

Photoinduced electron transfer in mechanically interlocked suit[3]ane systems

2021 ◽  
Author(s):  
Anton J Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander Voityuk
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
New Class ◽  
Transfer Processes ◽  
Two Component ◽  
Electron Transfer Processes

Suitanes, a new class of two-component mechanically interlocked systems, have recently been developed. In this work, we report a detailed study of photoinduced electron transfer processes in the suit[3]anes consisting...

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