A Highly Stable Luminescent Eu-MOF Exhibiting Efficient Response to Nitrofuran Antibiotics through the Inner Filter Effect and Photoinduced Electron Transfer

2019 ◽  
Vol 2019 (48) ◽  
pp. 5077-5084 ◽  
Author(s):  
Han-Wen Yang ◽  
Ping Xu ◽  
Bo Ding ◽  
Zheng-Yu Liu ◽  
Xiao-Jun Zhao ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Inner Filter Effect ◽  
Filter Effect ◽  
Nitrofuran Antibiotics

Selective detection of Fe3+ ions based on fluorescence MXene quantum dots via a mechanism integrating electron transfer and inner filter effect

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1826-1832 ◽  
Author(s):  
Qiuxia Zhang ◽  
Yan Sun ◽  
Meiling Liu ◽  
Yang Liu
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Chemical Biology ◽  
Inner Filter Effect ◽  
Environmental Applications ◽  
Selective Detection ◽  
Functional Nanomaterials ◽  
Filter Effect

Fluorescence quantum dots (QDs) are promising functional nanomaterials in chemical biology and environmental applications, where an analyte-induced responsive system is beneficial for detecting numerous life-related molecules and pollutants.

Dual channel ion imprinted fluorescent polymers for dual mode simultaneous chromium speciation analysis

The Analyst ◽  
2020 ◽  
Vol 145 (7) ◽  
pp. 2661-2668
Author(s):  
Hongzhi Lu ◽  
Shoufang Xu
Keyword(s):  
Electron Transfer ◽  
Inner Filter Effect ◽  
Speciation Analysis ◽  
Core Shell ◽  
Chromium Speciation ◽  
Dual Mode ◽  
Dual Channel ◽  
Filter Effect ◽  
Ion Imprinted ◽  
Fluorescent Polymers

We report core shell structured ion imprinted fluorescent polymers structure for blue and red dual channel simultaneous chromium speciation analysis based on the inner filter effect and electron transfer dual mode.

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>

Polyethyleneimine-functionalized carbon dots as a fluorescent probe for doxorubicin hydrochloride by an inner filter effect

2021 ◽  
Vol 112 ◽  
pp. 110743
Author(s):  
Min Yang ◽  
Yujia Yan ◽  
Enzhou Liu ◽  
Xiaoyun Hu ◽  
Hong Hao ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Carbon Dots ◽  
Inner Filter Effect ◽  
Doxorubicin Hydrochloride ◽  
Filter Effect

Fluorometric discrimination of tyrosine isomers based on the inner filter effect of chiral Au nanoparticles on MoS2 quantum dots

2021 ◽  
Author(s):  
Qianqian Zhao ◽  
Datong Wu ◽  
Zhengzhi Yin ◽  
Wenrong Cai ◽  
Haifeng Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Au Nanoparticles ◽  
Inner Filter Effect ◽  
Filter Effect

A fluorescent chiral sensor is proposed based on the inner filter effect (IFE) of chiral Au nanoparticles (AuNPs) on MoS2 quantum dots (MoS2 QDs), which can be used for the...

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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