Novel photoinduced electron-transfer sensor for saccharides based on the interaction of boronic acid and amine

Author(s):  
Tony D. James ◽  
K. R. A. Samankumara Sandanayake ◽  
Seiji Shinkai
RSC Advances ◽  
2016 ◽  
Vol 6 (11) ◽  
pp. 8588-8593 ◽  
Author(s):  
Yanming Miao ◽  
Maoqing Yang ◽  
Guiqin Yan

We synthesized boronic-acid-substituted viologens (BBV) and designed a glucose sensor based on room-temperature phosphorescence (RTP) quantum dots (QDs) and BBV.


2010 ◽  
Vol 34 (12) ◽  
pp. 2922 ◽  
Author(s):  
Joseph D. Larkin ◽  
Karine A. Frimat ◽  
Thomas M. Fyles ◽  
Stephen E. Flower ◽  
Tony D. James

2014 ◽  
Vol 30 (6) ◽  
pp. 643-648 ◽  
Author(s):  
Hiroya KANO ◽  
Daichi TANOUE ◽  
Hiroaki SHIMAOKA ◽  
Kohei KATANO ◽  
Takeshi HASHIMOTO ◽  
...  

1995 ◽  
Vol 117 (35) ◽  
pp. 8982-8987 ◽  
Author(s):  
Tony D. James ◽  
K. R. A. Samankumara Sandanayake ◽  
Ritsuko Iguchi ◽  
Seiji Shinkai

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>


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