Results 261 to 270 of about 1,075,830 (357)

Challenges of II‐VI and III‐V Blue Quantum Dot Light‐Emitting Diodes

Advanced Materials, EarlyView.
Blue‐emitting electroluminescent quantum dot light‐emitting diodes (QD‐LEDs) face critical challenges that limit their practical application, including short operational lifetimes, low color purity, broad spectral linewidths, and unpredictable transient effects like blinking and positive aging.
Shaun Tan, Jonah R. Horowitz, Oliver J. Tye, Moungi G. Bawendi   +3 more
wiley   +1 more source

Quenching parameters K_sv and f_m of acrylamide and KI as quenchers for fluorescence quenching of unfolded SPI-casein complexes induced by urea at different concentrations.

Yangchao Gao (20968115), Yuchuan Li (352300), Yifan Yang (170387), Hongying He (6639617), Yanqiong Li (584353), Shuhui Yu (1535500), Haiying Wang (6869), Yuyu Zhang (1447915), He Liu (67509)   +8 more
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On mechanisms of fluorescence quenching by water

Biophysics, 2014
Mechanisms of fluorescence quenching of aromatic chromophores by water are reviewed. The mechanisms include polarity of chromophore environment, proton or electron transfer between the excited chromophore and water. A hypothesis is proposed that the quenching can be a result of chromophore-solvent hydrogen bond breaking in the excited state.
G E, Dobretsov, T I, Syrejschikova, N V, Smolina   +2 more
openaire   +3 more sources

Fluorescence quenching studies with proteins

Analytical Biochemistry, 1981
Abstract A review is presented on the use of the technique of solute fluorescence quenching to study the structure and dynamics of proteins. A number of factors are discussed that must be considered in analyzing such data. Among these factors are the efficiency of the quenching process, the relative importance of static quenching, the heterogeneity ...
M R, Eftink, C A, Ghiron
openaire   +3 more sources

Detection of oxygen by fluorescence quenching

Applied Optics, 1985
The incorporation of an aromatic hydrocarbon fluorescent compound into silicone allows utilization of fluorescence quenching as a mechanism to measure molecular oxygen concentration in the composite matrix. Excitation and emission spectra of the aromatics change in agreement with the Franck-Condon model when the universal solvent is benzene ...
M E, Cox, B, Dunn
openaire   +2 more sources

Increasing Photothermal Efficacy by Simultaneous Intra‐ and Intermolecular Fluorescence Quenching

Advanced Functional Materials, 2019
Recently, using in situ self‐assembly‐induced fluorescence quenching (i.e., intermolecular quenching denoted herein) of a photothermal agent (PTA) to enhance its photothermal efficiency has proven to be a successful photothermal therapy (PTT) strategy ...
Wei Du, Yuanyuan Chong, Xiaomu Hu, Yanfang Wang, Yu. R. Zhu, Jihua Chen, Xiaoxia Li, Qun Zhang, Guangfeng Wang, Jun Jiang, G. Liang   +10 more
semanticscholar   +1 more source

Fluorescence Quenching in Membrane Phase

Biochemical and Biophysical Research Communications, 1995
Membrane-related events can be investigated when the fluorescence of an intramembrane fluorophore is quenched by molecules that are dissolved in lipid phase. In this case the bimolecular quenching constant characterises the relative transport rate of the fluorophore and quencher molecules in the membrane interior and thereby it is related to the ...
Z, Lakos, A, Szarka, B, Somogyi
openaire   +2 more sources

Quenching of chlorophyll fluorescence by quinones

IUBMB Life, 1998
AbstractQuinones caused quenching of Chl a fluorescence in native and model systems. Menadione quenched twofold the fluorescence of Chl a and BChl a in pea chloroplasts, chromatophores of purple bacteria, and liposomes at concentrations of 50‐80 μM. To obtain twofold quenching in Triton X‐100 micelles and in ethanol, the addition of 1.3 mM and 11 mM ...
V D, Samuilov, , Borisov AYu, E L, Barsky, O F, Borisova, A V, Kitashov   +4 more
openaire   +2 more sources

Phase-Dependent Fluorescence Quenching Efficiency of MoS2 Nanosheets and Their Applications in Multiplex Target Biosensing.

ACS Applied Materials and Interfaces, 2018
Two-dimensional layered transition-metal dichalcogenide nanosheets have shown great potential in biosensors owing to their unique properties. Here, we exfoliated ultrathin metallic and semiconductive MoS2 nanosheets based on a chemical exfoliation method.
Lingyi Lan, Danke Chen, Yao Yao, Xinsheng Peng, Jian Wu, Yanbin Li, Jianfeng Ping, Y. Ying   +7 more
semanticscholar   +1 more source