Tuning Photoinduced Electron Transfer Efficiency of Fluorogenic BODIPY-α -Tocopherol Analogues

2018 ◽  
Vol 95 (1) ◽  
pp. 192-201 ◽  
Author(s):  
Lana E. Greene ◽  
Richard Lincoln ◽  
Gonzalo Cosa
2019 ◽  
Vol 127 (9) ◽  
pp. 490
Author(s):  
Е.П. Колесова ◽  
Ф.М. Сафин ◽  
В.Г. Маслов ◽  
Ю.К. Гунько ◽  
А.О. Орлова

The effect of photoinduced processes on the CdSe/ZnS quantum dots surface on the functionality of TiO2 nanoparticles/quantum dots hybrid structures has been studied. We demonstrate that pre-irradiation of QDs layers allows for a threefold increase in the photoinduced electron transfer efficiency in the structures. It was shown that photoinduced processes affect both the efficiency of nonradiative processes in QDs and electron transfer conditions in hybrid structures.


2008 ◽  
Vol 10 (15) ◽  
pp. 3211-3214 ◽  
Author(s):  
Yu-Hsien Lin ◽  
Hsu-Hsuan Wu ◽  
Ken-Tsung Wong ◽  
Cheng-Chih Hsieh ◽  
Yi-Chih Lin ◽  
...  

2002 ◽  
Vol 106 (43) ◽  
pp. 10254-10260 ◽  
Author(s):  
Toshifumi Konishi ◽  
Atsushi Ikeda ◽  
Takanori Kishida ◽  
Brian Schou Rasmussen ◽  
Mamoru Fujitsuka ◽  
...  

2014 ◽  
Vol 86 (18) ◽  
pp. 9293-9300 ◽  
Author(s):  
Daniel Aigner ◽  
Stefan A. Freunberger ◽  
Martin Wilkening ◽  
Robert Saf ◽  
Sergey M. Borisov ◽  
...  

2019 ◽  
Vol 127 (8) ◽  
pp. 325
Author(s):  
Е.П. Колесова ◽  
В.Г. Маслов ◽  
Ю.К. Гунько ◽  
А.О. Орлова

A new approach for estimation of photoinduced electron transfer efficiency from CdSe/ZnS QDs to Titania NPs using ROS generation has been introduced. The 26% efficiency electron transfer has been realized in the prepared Titania NPs/QDs multilayered hybrid structures.


2020 ◽  
Author(s):  
Rishikesh Kulkarni ◽  
Anneliese Gest ◽  
Chun Kei Lam ◽  
Benjamin Raliski ◽  
Feroz James ◽  
...  

<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>


Author(s):  
Anton J Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander Voityuk

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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