Results 21 to 30 of about 3,135,514 (288)

Diterpenoids inhibit ox-LDL-induced foam cell formation in RAW264.7 cells by promoting ABCA1 mediated cholesterol efflux

open access: yesFrontiers in Pharmacology, 2023
Introduction: Atherosclerosis is the main cause of many cardiovascular diseases and contributes to morbidity and mortality worldwide. The formation of macrophage-derived foam cells plays a critical role in the early stage of atherosclerosis pathogenesis.
Cheng Zhang   +12 more
doaj   +1 more source

Mesoporous Silica Modified with 2-Phenylimidazo[1,2-a] pyridine-3-carbaldehyde as an Effective Adsorbent for Cu(II) from Aqueous Solutions: A Combined Experimental and Theoretical Study

open access: yesMolecules, 2022
In this study, we will present an efficient and selective adsorbent for the removal of Cu(II) ions from aqueous solutions. The silica-based adsorbent is functionalized by 2-phenylimidazo[1,2-a] pyridine-3-carbaldehyde (SiN-imd-py) and the ...
Rafik Saddik   +8 more
doaj   +1 more source

Partial and Total Solvent-Free Limonene’s Hydrogenation: Metals, Supports, Pressure, and Water Effects

open access: yesJournal of Chemistry, 2020
Bio-based solvents menthene and menthane were obtained through limonene’s partial and total hydrogenation under various catalytic conditions. Heterogeneous catalysts based on different active metals and supports (carbon, alumina, and silica) were ...
Fanta J. Ndongou Moutombi   +4 more
doaj   +1 more source

Temporal variation and risk assessment of heavy metals and nutrients from water and sediment in a stormwater pond, Brazil

open access: yesWater Supply, 2023
Urban watercourses are under pressure owing to the inflow of environmental pollutants from stormwater and effluent. The concentrations of heavy metals, ammoniacal nitrogen, total phosphorus (TP), and physicochemical parameters were monitored in a ...
Emanoelle Pereira da Silva   +3 more
doaj   +1 more source

Green Chemistry and Multivariate Optimization in the Extraction of Phenolic Compounds: The Potential of NaDES in Alternative Raw Materials for Expanded Extrudates. [PDF]

open access: goldMethods Protoc
Araújo MA   +10 more
europepmc   +2 more sources

2-methyloxolane as alternative solvent for lipid extraction and its effect on the cactus (Opuntia ficus-indica L.) seed oil fractions☆

open access: yesOilseeds and fats, crops and lipids, 2020
The potential of 2-methyloxolane (2-MeO) as an alternative solvent to extract cactus seed oil was compared, in qualitative and quantitative terms, with that of n-hexane, a solvent commonly used for the extraction of edible or cosmetic oils.
Gharby Said   +5 more
doaj   +1 more source

Heavy metal contamination in some soils of the McMurdo Sound region, Antarctica [PDF]

open access: yes, 1995
Soil samples from eight sites at Marble Point and Pram Point, McMurdo Sound region, contaminated by human activities were examined for heavy metal content, using sequential extraction methods.
Amin, Z.H.   +4 more
core   +2 more sources

The Coordination Chemistry and Stoichiometry of Extracted Diglycolamide Complexes of Lanthanides in Extraction Chromatography Materials

open access: yesSolvent extraction and ion exchange, 2021
Industrial rare earth element (REE) separations predominantly utilize solvent extraction processes tailored toward conventional resources such as bastnäsite, monazite, and ion adsorption clays.
Ramedy Flores   +8 more
semanticscholar   +1 more source

Hydrous Manganese Oxide Doped Gel Probe Sampler for Measuring In Situ Reductive Dissolution Rates. 2. Field Deployment [PDF]

open access: yes, 2010
In situ rates of reductive dissolution in submerged shoreline sediments at Lake Tegel (Berlin, Germany) were measured with a novel hydrous manganese (Mn) oxide-doped gel probe sampler in concert with equilibrium gel probe and sequential extraction ...
Farnsworth, Claire E.   +3 more
core   +2 more sources

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