Results 31 to 40 of about 403,555 (400)

Online photochemical derivatization enables comprehensive mass spectrometric analysis of unsaturated phospholipid isomers

Nature Communications, 2019
Mass spectrometry-based lipidomics is the primary tool for the structural analysis of lipids but the effective localization of carbon–carbon double bonds (C=C) in unsaturated lipids to distinguish C=C location isomers remains challenging.
Wenpeng Zhang, Donghui Zhang, Qinhua Chen, Junhan Wu, Ouyang Zheng, Yu Xia   +5 more
semanticscholar   +1 more source

Further Insights on the Carotenoid Profile of the Echinoderm <em>Marthasteria</em><em>s glacialis</em> L.

Marine Drugs, 2012
In this study, the carotenoid profile of the echinoderm <em>Marthasterias glacialis</em> L. was established using HPLC-DAD-APCI-MS/MS equipped with a C₃₀ column. This approach rendered the identification of 20 compounds,
Natércia Teixeira, Paula B. Andrade, Patrícia Valentão, Lilian R. B. Mariutti, David M. Pereira, Adriana Zerlotti Mercadante   +5 more
doaj   +1 more source

‘Melatonin isomer’ in wine is not an isomer of the melatonin but tryptophan‐ethylester

Journal of Pineal Research, 2014
AbstractMelatonin is a neurohormone, chronobiotic, and antioxidant compound found in wine and deriving directly from grapes and/or synthesized by yeast during alcoholic fermentation. In addition, a melatonin isomer has been detected in different foods, wine among them.
C. Gardana, M. Iriti, M. Stuknytė, I. De Noni, P. Simonetti   +4 more
openaire   +3 more sources

Tetradentate organophosphines in Pt(η4–A4L) (A = P4, P3Si, P2X2 (X2 = N2, S2, C2), PX3 (X3 = N3, N2O)): Structural aspects

Main Group Metal Chemistry, 2021
We report herein structural characterization of monomeric platinum complexes of the composition: Pt(η4–P4L), Pt(η4–P3SiL), Pt(η4–P2N2L), Pt(η4–P2S2L), Pt(η4–P2C2L), Pt(η4–PN3L), and Pt(η4–PN2OL).
Melník Milan, Mikuš Peter
doaj   +1 more source

Starch and oil in the donor cow diet and starch in substrate differently affect the in vitro ruminal biohydrogenation of linoleic and linolenic acids [PDF]

, 2011
Trans isomers of fatty acids exhibit different health properties. Among them, trans-10,cis-12 conjugated linoleic acid has negative effects on milk fat production and can affect human health.
S. Combes, A. Zened, Nicot, Marie-Claude, Cauquil, Laurent, L. Cauquil, Farizon, Yves, Y. Farizon, A. Troegeler-Meynadier, Troegeler-Meynadier, Annabelle, Combes, Sylvie, Meynadier, Annabelle, Zened, Asma, Enjalbert, Francis, M.C. Nicot, F. Enjalbert   +14 more
core   +1 more source

Crystal structures of two isomeric 2-aryl-3-phenyl-1,3-thiazepan-4-ones

Acta Crystallographica Section E: Crystallographic Communications, 2019
The crystal of 6-(3-nitrophenyl)-7-phenyl-5-thia-7-azaspiro[2.6]nonan-8-one (1), C19H18N2O3S, has monoclinic (P21/n) symmetry while that of its isomer 6-(4-nitrophenyl)-7-phenyl-5-thia-7-azaspiro[2.6]nonan-8-one (2), has orthorhombic (Pca21) symmetry ...
Hemant P. Yennawar, Samuel D. Peterson, Lee J. Silverberg   +2 more
doaj   +1 more source

Isolation and spectral characterization of thermally generated multi-Z-isomers of lycopene and the theoretically preferred pathway to di-Z-isomers

, 2017
Lycopene has a large number of geometric isomers caused by E/Z isomerization at arbitrary sites within the 11 conjugated double bonds, offering varying characteristics related to features such as antioxidant capacity and bioavailability.
Chitoshi Kitamura (2401963), Takahiro Kuwa (3621068), Yoshinori Inoue (816495), Tatsuya Kudo (3621074), Munenori Takehara (3621071), Takuma Higashiura (3621077), Tetsuya Fukaya (3621065), Masaki Honda (2362039)   +7 more
core   +1 more source

Deep Lipidomics and Molecular Imaging of Unsaturated Lipid Isomers: A Universal Strategy Initiated by mCPBA Epoxidation.

Analytical Chemistry, 2019
Cellular lipidome is highly regulated through lipogenesis, rendering diverse double-bond positional isomers (C=C isomer) of a given unsaturated lipid species.
Ting-Hao Kuo, Hsin-Hsiang Chung, Hsin-Yuan Chang, Chiao-Wei Lin, Ming-Yang Wang, Tang-Long Shen, Cheng-Chih Hsu   +6 more
semanticscholar   +1 more source

Self-Assembly for Two Types of J‑Aggregates: cis-Isomers of Dye on the Carbon Nanotube Surface and Free Aggregates of Dye trans-Isomers

, 2019
Development of novel nanoscale devices requires unique functional nanomaterials. Furthermore, chemical design of different nanoparticles in one unit is a complex task, particularly the application of self-assembly J-aggregates, which can substantially ...
Georgios E. Arnaoutakis (7122107), Petro Lutsyk (3097077), Mykola Shandura (1285428), Maria Tesa (7122104), Aleksey Rozhin (3097065), Oleksiy Kachkovsky (3097080), Mohammed AlAraimi (3097071), Ambrose Ashwin Melvin (7122110), Anatoly Verbitsky (7122113), Yuri Piryatinski (3097074)   +9 more
core   +1 more source

ISOMER BEAMS

International Journal of Modern Physics E, 2006
As a subset of radioactive beams, isomer beams open up the dimensions of excitation energy and angular momentum. The problem of isomer decay rates is briefly presented, as they are not yet well understood. The use of isomer beams for nuclear structure investigations is reviewed, using examples related to exotic decay modes, charge radii, and Coulomb ...
openaire   +4 more sources