Results 101 to 110 of about 3,686,327 (402)

Trapped ion mobility spectrometry and PASEF enable in-depth lipidomics from minimal sample amounts

open access: yes, 2020
A comprehensive characterization of the lipidome from limited starting material remains very challenging. Here we report a high-sensitivity lipidomics workflow based on nanoflow liquid chromatography and trapped ion mobility spectrometry (TIMS).
Barsch, A.   +8 more
core   +1 more source

Sulfanilic acid-modified chitosan mini-spheres and their application for lysozyme purification from egg white [PDF]

open access: yes, 2018
A cation exchange matrix with zwitterionic and multimodal properties was synthesized by a simple reaction sequence coupling sulfanilic acid to a chitosan based support. The novel chromatographic matrix was physico-chemically characterized by ss-NMR and ζ
Baieli, María Fernanda   +7 more
core   +1 more source

Characterization of WAC interactions with R2TP and TTT chaperone complexes linking glucose and glutamine availability to mTORC1 activity

open access: yesFEBS Open Bio, EarlyView.
TTT and R2TP chaperone complexes are required for the assembly and activation of mTORC1. WAC directly interacts with components of TTT, R2TP, and mTORC1, and these interactions are affected by the availability of glucose and glutamine, correlating with changes in mTORC1 activity.
Sofía Cabezudo   +11 more
wiley   +1 more source

Development of an analytical method to detect cyanide in Chinese liquor by ion chromatography with pulsed amperometric detection

open access: yesZhongguo shipin weisheng zazhi, 2020
Objective This study aimed to develop an ion chromatography-pulse amperometry (IC-PAD) technique for the identification and quantification of cyanide in Chinese liquor. Methods The real samples from local markets were diluted to 1∶10 with ultrapure water
Zifei WANG   +5 more
doaj   +1 more source

Identification of a Widespread Palmitoylethanolamide Contamination in Standard Laboratory Glassware. [PDF]

open access: yes, 2017
Introduction: Fatty acid ethanolamides (FAEs) are a family of lipid mediators that participate in a host of biological functions. Procedures for the quantitative analysis of FAEs include organic solvent extraction from biological matrices (e.g., blood ...
Angelini, Roberto   +3 more
core  

Nitric oxide‐forming nitrite reductases in the anaerobic ammonium oxidizer Kuenenia stuttgartiensis

open access: yesFEBS Open Bio, EarlyView.
Anammox bacteria remove fixed nitrogen from their environment via anaerobic ammonium oxidation (anammox) with nitrite as electron acceptor and dinitrogen gas as product. The first anammox step is the conversion of nitrite to nitric oxide by nitrite reductase.
Femke J. Vermeir   +4 more
wiley   +1 more source

A Quantitative Method to Measure and Speciate Amines in Ambient Aerosol Samples

open access: yesAtmosphere, 2020
Ambient reactive nitrogen is a mix of nitrogen-containing organic and inorganic compounds. These various compounds are found in both aerosol- and gas-phases with oxidized and reduced forms of nitrogen.
Amy P. Sullivan   +5 more
doaj   +1 more source

DART-ID increases single-cell proteome coverage. [PDF]

open access: yes, 2019
Analysis by liquid chromatography and tandem mass spectrometry (LC-MS/MS) can identify and quantify thousands of proteins in microgram-level samples, such as those comprised of thousands of cells.
Chen, Albert Tian   +2 more
core   +3 more sources

Colchicine Concentrations and Relationship With Colchicine Efficacy and Adverse Events: Post Hoc Analysis of a Randomized Clinical Trial of Colchicine for Gout Flare Prophylaxis

open access: yesArthritis Care &Research, EarlyView.
Objective Our objective was to examine the relationship between colchicine plasma concentrations and clinical and demographic factors and to determine the relationship between colchicine concentrations and colchicine efficacy and colchicine‐specific adverse events.
Lisa K. Stamp   +8 more
wiley   +1 more source

A method validation for simultaneous determination of phthalates and bisphenol A released from plastic water containers [PDF]

open access: yes, 2019
Phthalates (or phthalate esters, PAEs) and bisphenol A (BPA) are widely used in various industries, particularly in the fields of cosmetics and packaging, and they increase the malleability and workability of materials.
Avino, P.   +4 more
core   +1 more source

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