Articles with "c18" as a keyword



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Origin of structure and stability of M@C18 (M = Cu, Ag, and Au) complexes with D9h point group.

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Published in 2023 at "Journal of computational chemistry"

DOI: 10.1002/jcc.27127

Abstract: Theoretical predictions and recent experimental studies lead to the discovery of an exciting new member of the carbon allotrope family polyynic cyclo[18]carbon (C18 ). Present investigation aims to probe the structure, stability, and properties of… read more here.

Keywords: c18 c18; c18; c18 complexes; stability c18 ... See more keywords
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Sol-gel niobia sorbent with a positively charged octadecyl ligand providing enhanced enrichment of nucleotides and organophosphorus pesticides in capillary microextraction for online HPLC analysis.

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Published in 2018 at "Journal of separation science"

DOI: 10.1002/jssc.201701104

Abstract: A niobia-based sol-gel organic-inorganic hybrid sorbent carrying a positively charged C18 ligand (Nb2 O5 -C18 (+ve)) was synthesized to achieve enhanced enrichment capability in capillary microextraction of organophosphorus compounds (which include organophosphorus pesticides and nucleotides)… read more here.

Keywords: sol gel; sorbent; gel niobia; capillary microextraction ... See more keywords
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Highly Stretchable, Repairable and Tough Nanocomposite Hydrogel Physically Cross-linked by Hydrophobic Interactions and Reinforced by Surface-Grafted Hydrophobized Cellulose Nanocrystals.

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Published in 2023 at "Macromolecular rapid communications"

DOI: 10.1002/marc.202300053

Abstract: Highly stretchable, repairable and tough nanocomposite hydrogels were designed by incorporating hydrophobic carbon chains to create first-layer cross-linking among the polymer matrix and monomer-modified polymerizable yet hydrophobic nanofillers to create second-layer strong polymer-nanofiller clusters involving… read more here.

Keywords: hydrogel; c18; c18 dmac; hydrophobic interactions ... See more keywords
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A HILIC-MS/MS method development and validation for the quantitation of 13 acylcarnitines in human serum

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Published in 2022 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-022-03940-9

Abstract: Acylcarnitines are essential diagnostic markers for complex diseases and fatty acid metabolism disorders, and play an important role in cardiovascular diseases. Herein, a HILIC-MS/MS method was developed and validated for the rapid quantitation of the… read more here.

Keywords: method; quantitation acylcarnitines; quantitation; c18 ... See more keywords
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Use of protected fat sources to reduce fatty acid biohydrogenation and improve abomasal flow in dry dairy cows

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Published in 2017 at "Animal Feed Science and Technology"

DOI: 10.1016/j.anifeedsci.2016.12.007

Abstract: Abstract The objective of this study was to evaluate the effects of dietary fat supplementation on dry dairy cows feed intake, digestion, ruminal kinetics, biohydrogenation, and abomasal flow of fatty acids (FAs). Eight Holstein rumen… read more here.

Keywords: supplementation; soybean; biohydrogenation; abomasal flow ... See more keywords
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Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids

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Published in 2020 at "Chinese Journal of Chemical Engineering"

DOI: 10.1016/j.cjche.2019.12.012

Abstract: Abstract A novel silver-based dihydric alcohol extractant was substituted for ionic liquids to enrich methyl linolenate (C18-3) from tallow seed oil methyl ester in this study. The interactions among dihydric alcohol, Ag(I) and C18-3 were… read more here.

Keywords: methyl; extraction; dihydric alcohol; silver based ... See more keywords

Novel oleyl amine-modified polymannuronic acid micelle loading tacrolimus for therapy of allergic conjunctivitis.

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Published in 2017 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2017.06.064

Abstract: Marine polysaccharide-based nanomaterial attracted considerable attention due to its biocompatibility and biodegradability. Here, a novel polymannuronic acid derivative (PM-C18) was synthesized as nanocarrier modified with hydrophobic oleyl amine. Its structure was confirmed by Fourier-transformed infrared… read more here.

Keywords: polymannuronic acid; allergic conjunctivitis; fk506 loaded; oleyl amine ... See more keywords

Lesquerella FAD3-1 gene is responsible for the biosynthesis of trienoic acid and dienoic hydroxy fatty acids in seed oil

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Published in 2019 at "Industrial Crops and Products"

DOI: 10.1016/j.indcrop.2019.04.008

Abstract: Abstract Lesquerella (Physaria fendleri) contains a major unusual hydroxy fatty acid, lesquerolic acid (14-hydroxy-eicos-cis-11-enoic acid, C20:1-OH), at 55–60% of seed oil which has industrial value. The remaining seed oil comprises mainly common fatty acids including… read more here.

Keywords: hydroxy; c18; pffad3; seed ... See more keywords
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Trans fatty acids in margarines and shortenings in the food supply in Slovenia

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Published in 2018 at "Journal of Food Composition and Analysis"

DOI: 10.1016/j.jfca.2018.08.007

Abstract: Abstract Trans fatty acid (TFA) content in foods is not regulated in most European countries. Fatty acid (FA) composition, total TFA levels, and TFA isomers were determined for 43 margarines available on the Slovenian market… read more here.

Keywords: tfa; trans c18; food supply; trans fatty ... See more keywords
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Synthesis of a novel polydopamine and C18 dual-functionalized magnetic core-shell mesoporous nanocomposite for enrichment and analysis of widely abused illegal drugs in urine samples on site and in the laboratory.

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Published in 2022 at "Journal of pharmaceutical and biomedical analysis"

DOI: 10.1016/j.jpba.2022.114656

Abstract: In this study, a novel polydopamine and C18 dual-functionalized magnetic core-shell mesoporous silica (Fe3O4@nSiO2@mSiO2@PDA-C18) nanocomposite was designed and synthesized, which was employed as an adsorbent to extract illegal drugs from urine samples by magnetic solid-phase… read more here.

Keywords: urine samples; illegal drugs; c18; dual functionalized ... See more keywords
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Screening method for determination of C18:1 trans fatty acids positional isomers in chocolate by 1H NMR and chemometrics

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Published in 2020 at "Lwt - Food Science and Technology"

DOI: 10.1016/j.lwt.2020.109689

Abstract: Abstract The regulations established worldwide, restricting trans fatty acids (TFA) from industrial origin in foods, encourage the development of rapid methods to verify the quality of food products. A simple and rapid procedure based on… read more here.

Keywords: isomers chocolate; trans fatty; fatty acids; food ... See more keywords