Results 21 to 30 of about 291,870 (258)

Selective Sensing of Darolutamide and Thalidomide in Pharmaceutical Preparations and in Spiked Biofluids

open access: yesBiosensors, 2022
Selective spectrofluorometric sensing is introduced for the analysis of non-steroidal anti-androgens, darolutamide, and thalidomide in pharmaceutical preparations and biofluids.
Wael Talaat   +2 more
doaj   +1 more source

On the inadequacy of Stern-Volmer and FRET in describing quenching in binary donor-acceptor solutions [PDF]

open access: yes, 2023
Quantitative fluorescence quenching is a common analytical approach to studying the mechanism of chemical reactions. The Stern-Volmer (S-V) equation is the most common expression used to analyzing quenching behavior, and can be used to extract kinetics ...
Justin, Caram   +3 more
core   +1 more source

Using Lifetime and Quenching Rate Constant to Determine Quencher Concentration [PDF]

open access: yes, 2022
Excited state quenching is a key step in photochemical reactions that involve energy or electron transfer. High reaction quantum yields require sufficiently high concentrations of quencher to ensure efficient quenching.
Xena, Soto, John, Swierk
core   +2 more sources

Applications of fluorescence spectroscopy in protein conformational changes and intermolecular contacts

open access: yesBBA Advances, 2023
Emission fluorescence is one of the most versatile and powerful biophysical techniques used in several scientific subjects. It is extensively applied in the studies of proteins, their conformations, and intermolecular contacts, such as in protein-ligand ...
Fábio Henrique dos Santos Rodrigues   +3 more
doaj   +1 more source

The Effect of Heat Treatment on the Microstructure and Mechanical Properties of Cu-Al-Mn Shape Memory Alloy [PDF]

open access: yesKemija u Industriji, 2018
The 8-mm diameter bars of Cu-Al-Mn shape memory alloys were produced by continuous casting technique. The samples were characterised using optical microscopy and scanning electron microscopy along with EDX analysis.
Stjepan Kožuh   +5 more
doaj   +1 more source

Modelling fluorescence quenching in systems with restricted diffusion: applications to oligonucleotides and polypeptides [PDF]

open access: yes, 2004
The objectives of the present thesis are 1) to systematically develop a series of models and theoretical expressions for the diffusion-controlled reaction, which can be used to analyze the time-resolved fluorescence data in systems where the diffusion is
Wang, Xiaojuan
core   +1 more source

Fluorescence quenching detection of UO2 2+ in aqueous solution based on an organic molecule probe of 6-chloro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide

open access: yesReviews in Analytical Chemistry, 2021
Fluorescence quenching detection of UO2 2+ in aqueous solution based on an organic molecule probe of 6-chloro-2H-1,2,4-benzothiadiazine-7-sulfonamide 1,1-dioxide.
Elabd Amira A., Elhefnawy Olivea A.
doaj   +1 more source

THE USE OF CARBON, HIGH-CHROMIUM STEELS FOR LINERS OF MUD PUMPS AND DRILLING RIGS

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2017
The paper shows that high temperature heating (from 1 100 to 1 170 0C) for the subsequent quenching of high-chromium steels of a martensitic-carbide class 95X18 and X12MFL provides structure to the metal base, which consist of high-carbon containing ...
M. A. Filippov   +4 more
doaj   +1 more source

Microstructure and Mechanical Behavior of Cu-Al-Ni-B Alloys with Thermoelastic Martensitic Transformation

open access: yesMetals, 2023
For the first time, using optical, scanning, and transmission electron microscopy and X-ray phase analysis in combination with measurements of tensile mechanical properties, we obtained data on the structural features of the polycrystalline shape-memory ...
Alexey E. Svirid   +6 more
doaj   +1 more source

Quenching speed.

open access: yes, 2022
Quenching curve depicting the quenching rate of at least 900°C/s in the first second. (PDF)
Dierk Raabe (3934439)   +8 more
core   +1 more source

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