Results 301 to 310 of about 1,191,294 (396)

Ultrasensitive optical detection of Fe³⁺ ions using fluorescent carbon quantum dots derived from Simmondsia Chinensis Jojoba leaves. [PDF]

Sci Rep
Ghali M, Mabior WS, Soliman H, Sami M, Elnimr MK.   +4 more
europepmc   +1 more source

Photonic crystal enhanced fluorescence using a hybrid hexagonal boron nitride spacer and plasmonic gold cryosoret cavity.

Nanoscale
Bhattacharya S, Bhaskar S, Liu W, Tibbs J, Pachchigar V, Sankaran RM, Cunningham BT.   +6 more
europepmc   +1 more source

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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

Fluorescence Quenching by Redox Molecular Pumping

Journal of the American Chemical Society, 2022
Artificial molecular pumps (AMPs), inspired by the active cellular transport exhibited in biological systems, enable cargoes to undergo unidirectional motion, courtesy of molecular ratchet mechanisms in the presence of energy sources. Significant progress has been achieved, using alternatively radical interactions and Coulombic repulsive forces to ...
Li, Xuesong, David, Arthur H. G., Zhang, Long, Song, Bo, Jiao, Yang, Sluysmans, Damien, Qiu, Yunyan, Wu, Yong, Zhao, Xingang, Feng, Yuanning, Mosca, Lorenzo, Stoddart, J. Fraser   +11 more
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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
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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

Steric effect on fluorescence quenching

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2005
In this communication we have reported the steric effect on the fluorescence quenching rate constants of the electron transfer (ET) process. We have done a comparative study using donor (D)-acceptor (A) systems with different exergonicity (-deltaG(f)). Different carbazole derivatives (CZ): 1,4-dicyanobenzene (DCB) systems (-deltaG(f) = 0.7-0.8 eV) were
Suchandra, Chatterjee, Samita, Basu, Nandita, Ghosh, Manas, Chakrabarty   +3 more
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Fluorescence Anisotropy Controlled by Light Quenching

Photochemistry and Photobiology, 1998
We demonstrated that fluorescence anisotropy can be effectively decreased or increased in the presence of light quenching, depending on relative polarizations of excitation and quenching pulses. For parallel light quenching, anisotropy decreases to 0.103 and z-axis symmetry is preserved.
I, Gryczynski, Z, Gryczynski, J R, Lakowicz   +2 more
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Nanoparticle induced fluorescence quenching

Radiation Physics and Chemistry, 1997
Fluorescence quenching of some dyes and probe molecules residing near the surface of very small silver metal particulate has been described. The quenching effect has been shown to be surface induced which has been authenticated by the reversible formation and destruction of the particle surface.
T. Pal, N.R. Jana, T. Sau
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