Results 21 to 30 of about 1,139,926 (347)
Quenching of the fluorescence of NO2 [PDF]
Journal of Photochemistry, 1972 The fluorescence yield of NO2 was monitored at 25 C with incident wavelengths of 4047, 4358, and 4800A at fluorescence wavelengths of 4860, 5577, and 6300A. The NO2 pressure was varied between 0.004 and 0.080 torr. Measurements were taken both in the absence of foreign gases and in the presence of up to 30 torr. He, N2, and O2 at each NO2 pressure.
Silvia E. Braslavsky, Julian Heicklen
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Shipin gongye ke-ji, 2022 In this work, using Eu3+ embedded tungsten-oxygen cluster (compound 1) as the fluorescent probe material, the rapid and sensitive fluorescence detection of heavy metal Cr3+ ions in aqueous solution by compound 1 has been systematically studied.
Zhenwei WANG +3 more
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Fluorescence quenching by plasmonic nanoantennas [PDF]
Physical Review B, 2020 Generalizing a previously developed analytical model of metal-enhanced fluorescence to the case of the strong coupling between a quantum emitter and a plasmonic nanoantenna, we study the fluorescence quenching in the strong coupling regime. When the nanoantenna is a simple Ag sphere and the quantum emitter approaches to its surface the fluorescence ...
Sharifian Mazraeh Mollaei, Masoud +3 more
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Applied Sciences, 2022 A single particle observation of quantum dots (QDs) was performed on lipid bilayers formed on graphene oxide (GO). The long-range fluorescence quenching of GO has been applied to biosensing for various biomolecules.
Yoshiaki Okamoto +2 more
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Facile synthesis of chitosan-capped ZnS quantum dots as an eco-friendly fluorescence sensor for rapid determination of bisphenol A in water and plastic samples [PDF]
, 2014 This paper describes a novel eco-friendly fluorescence sensor for determination of bisphenol A (BPA) based on chitosan-capped ZnS quantum dots (QDs). By using safe and inexpensive materials, nontoxic ZnS QDs were synthesized via an environment-friendly ...
Bie, Jiaxin +7 more
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Thioamides as Fluorescence-Quenching Probes [PDF]
Biophysical Journal, 2013 Fluorescence-quenching probes can be used to study the dynamics, folding, and aggregation of appropriately labeled protein systems. Valuable structural information can be extracted from distance-dependent quenching experiments; however, the structural resolution is often limited by the large size of the chromophore labels typically required for this ...
Jacob M. Goldberg, E. James Petersson
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Analysis of initial chlorophyll fluorescence induction kinetics in chloroplasts in terms of rate constants of donor side quenching release and electron trapping in photosystem II [PDF]
, 2008 The fluorescence induction F(t) of dark-adapted chloroplasts has been studied in multi-turnover 1 s light flashes (MTFs). A theoretical expression for the initial fluorescence rise is derived from a set of rate equations that describes the sequence of ...
Vredenberg, W.J.
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Promoting near‐infrared II fluorescence efficiency by blocking long‐range energy migration
Aggregate, 2023 Generally, long wavelength absorbed near‐infrared II (NIR‐II) dyes have a low fluorescence efficiency in aggregate states for aggregate‐caused quenching effect, simultaneously enhancing efficiency and extending absorption is a challenging issue for NIR ...
Changjin Ou +9 more
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St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023 In this work, the binding of caffeine (CAF) with nicotinamide (NIC) has been investigated by means of fluorescence quenching and UV-Vis spectroscopic techniques.
Gebreyohanes Ataklti Abraha +1 more
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Fluorescence Quenching in Model Membranes [PDF]
Biophysical Journal, 1982 Fluorescence quenching of membrane-bound fluorophors by nitroxide spin-labeled phospholipids has proved to be a useful technique for examining lipid-fluorophor contact (1-3). When the fluorophor is the tryptophanyl residue of a polypeptide, this method can yield relative binding constants of phospholipids to a membrane-bound polypeptide.
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