Results 51 to 60 of about 667,586 (301)

Vacuum-UV negative photoion spectroscopy of CF3Cl, CF3Br and CF3I [PDF]

open access: yes, 2009
Using synchrotron radiation negative ions have been detected by mass spectrometry following vacuum-UV photoexcitation of trifluorochloromethane (CF\(_3\)Cl), trifluorobromomethane (CF\(_3\)Br) and trifluoroiodomethane (CF\(_3\)I). The anions F\(^-\), X\(^
C. A. Hunniford   +6 more
core   +2 more sources

Circular Dichroism in Study of Drug Chirality

open access: yesАнтибиотики и Химиотерапия, 2020
Verapamyl substance and market verapamyl were investigated with circular dichroism. It was shown that circular dichroism provided rapid and highly efficient determination of the optic isomers and could be recommended as a method for control of drug ...
G. N. Gildeeva, I. G. Smirnova
doaj  

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

Removal of malathion from various waters by advanced oxidation processes [PDF]

open access: yes, 2015
Summary: The degradation of malathion was investigated under various conditions, including ultrasound (US) irradiation, ultraviolet (UV) irradiation, and the combination of US/UV, UV/ZnO, UV/H2O2, and US/UV/ZnO/H2O2.
Fadaei, A., Kargar, M.
core   +1 more source

Green tea polyphenol-reduced graphene oxide: derivatisation, reduction efficiency, reduction mechanism and cytotoxicity [PDF]

open access: yes, 2014
This paper reports on the derivatisation, reduction efficiency, reduction mechanism and cytotoxicity of green tea polyphenol-reduced graphene oxide (GTP-RGO).
Abdullah, M. F.   +2 more
core   +2 more sources

Advances on Water Quality Detection by UV-Vis Spectroscopy

open access: yesApplied Sciences, 2020
Water resources are closely linked to human productivity and life. Owing to the deteriorating water resources environment, accurate and rapid determination of the main water quality parameters has become a current research hotspot.
Yuchen Guo   +3 more
doaj   +1 more source

Chemometrics-Assisted UV-Vis Spectrophotometry for Quality Control of Pharmaceuticals: A Review

open access: yesIndonesian Journal of Chemistry, 2023
Spectroscopic method in the UV-Vis region is considered the most molecular spectrometric method for content determination of a single component. However, a lot of pharmaceutical dosage forms comprise two or more components which lead to peak overlapping.
Laela Hayu Nurani   +6 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Synthesis and Characterization of Coated Gold Nanoparticles with Embedded SERS Tags [PDF]

open access: yes, 2017
Gold nanoparticles were prepared with the potential to operate as drug delivery vehicles. Surface-enhanced Raman spectroscopy (SERS) is of particular importance as an optical bioimaging technique due to its ability to allow deep and high-resolution ...
Gilbert, Brian, Smith, Allison B.
core   +1 more source

A Survey of UV Bright Sources Behind the Halo of M31

open access: yes, 2009
We have performed a wide-area ultraviolet (UV) imaging survey using the GALaxy Evolution eXplorer (GALEX) to search for bright, point-like UV sources behind M31's extended halo. Our survey consisted of 46 pointings covering an effective area of ~50 deg^2,
Allen   +37 more
core   +1 more source

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