Results 21 to 30 of about 45,524 (260)

An origin identification model for labeling of shiitake (Lentinula edodes)

open access: yesnpj Science of Food, 2021
With the increasing globalization of the food trade across countries and continents, reliable identification of the geographical origin of products is critical. In this study, we describe the limitations of the current origin labeling system for non-soil-
Ill-Min Chung   +6 more
doaj   +1 more source

Limitations of In-Vitro Labeling of Endothelial Cells with Indium-111 Oxine

open access: yesCell Transplantation, 1995
Indium-111 oxine labeling is widely used as a marker of endothelial cell attachment to vascular prostheses. The long term effect of labeling human adult endothelial cells (HAECs) with this isotope has not been determined.
H.M.H. Carr   +5 more
doaj   +1 more source

Synthesis of Stable Isotope Deuterium Labeled Levofloxacin-D3

open access: yesJournal of Isotopes, 2023
In order to improve the stable isotope utilization rate, a simple and inexpensive synthesis method was developed. The synthesis of levofloxacin is based on piperazine as the starting material, and the reaction with carbobenzoxy chloride (CBZ-Cl) to get ...
XU Zhong jie;ZHANG Li;SUN Wen;ZHANG Pengshuai;LEI Wen
doaj   +1 more source

Synthesis of Sulfachloropyridazine-Benzene Ring-13C6

open access: yesJournal of Isotopes, 2023
A synthesis route for stable isotope-labeled sulfamethoxazole-benzene ring-13C6 has been developed. In this strategy, 13C6-benzene was used as the source and starting material for stable isotope labeling and starting material to synthesize ...
MEI Shu;GUO Hui;CHEN Wulian
doaj   +1 more source

Laboratory evaluation of stable isotope labeling of Culicoides (Diptera: Ceratopogonidae) for adult dispersal studies

open access: yesParasites & Vectors, 2019
Background Stable isotope labeling is a promising method for use in insect mark-capture and dispersal studies. Culicoides biting midges, which transmit several important animal pathogens, including bluetongue virus (BTV) and epizootic hemorrhagic disease
Emily G. McDermott   +6 more
doaj   +1 more source

In Vivo Estimates of Liver Metabolic Flux Assessed by 13C-Propionate and 13C-Lactate Are Impacted by Tracer Recycling and Equilibrium Assumptions

open access: yesCell Reports, 2020
Summary: Isotope-based assessment of metabolic flux is achieved through a judicious balance of measurements and assumptions. Recent publications debate the validity of key assumptions used to model stable isotope labeling of liver metabolism in vivo ...
Clinton M. Hasenour   +2 more
doaj   +1 more source

Synthesis of isotopically labelled ubiquinones

open access: yesTetrahedron Letters, 1992
Abstract Ubiquinones ( 1 ) of various chain lengths have been synthesized. The key step involves the condensation of a long chain polyunsaturated alcohol onto an aromatic intermediate. The synthetic methodology allows for the incorporation of isotopic labels in the methoxy groups attached to the ring portion of the molecule.
Duralski, A, Watts, A
openaire   +2 more sources

Isotope Labeling in Insect Cells [PDF]

open access: yes, 2011
Recent years have seen remarkable progress in applying nuclear magnetic resonance (NMR) spectroscopy to proteins that have traditionally been difficult to study due to issues with folding, posttranslational modification, and expression levels or combinations thereof. In particular, insect cells have proved useful in allowing large quantities of isotope-
Krishna, Saxena   +3 more
openaire   +2 more sources

Ultra-sensitive isotope probing to quantify activity and substrate assimilation in microbiomes

open access: yesMicrobiome, 2023
Background Stable isotope probing (SIP) approaches are a critical tool in microbiome research to determine associations between species and substrates, as well as the activity of species. The application of these approaches ranges from studying microbial
Manuel Kleiner   +10 more
doaj   +1 more source

isotopic labelling [PDF]

open access: yes, 2014
Citation: 'isotopic labelling' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03345 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

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