Results 21 to 30 of about 3,106,336 (388)

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

A novel method for extracting metals from asteroids using non-aqueous deep eutectic solvents

open access: yesScientific Reports, 2023
Extra-terrestrial mining and metal processing are vital for access to strategic metals for space exploration. This study demonstrates for the first time the catalytic dissolution of metals from meteorite proxies of metal-rich asteroids using a deep ...
Rodolfo Marin Rivera   +3 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

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

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

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

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

Physiochemical Characteristics of Hot and Cold Brew Coffee Chemistry: The Effects of Roast Level and Brewing Temperature on Compound Extraction

open access: yesFoods, 2020
The role of roasting in cold brew coffee chemistry is poorly understood. The brewing temperature influences extraction processes and may have varying effects across the roast spectrum.
Niny Z. Rao, M. Fuller, Meghan Grim
semanticscholar   +1 more source

Chiral separation by enantioselective liquid–liquid extraction [PDF]

open access: yes, 2011
The literature on enantioselective liquid–liquid extraction (ELLE) spans more than half a century of research. Nonetheless, a comprehensive overview has not appeared during the past few decades.
Feringa, Ben L.,   +5 more
core   +2 more sources

EXTRACTION AND CHARACTERIZATION OF RICE BRAN OIL (RBO) FOR POTENTIAL APPLICATION AS BIODIESEL [PDF]

open access: yes, 2023
: Rice bran oil (RBO) is a potential feedstock for biodiesel and biolubricant production among other alternative sources. The rice bran’s fat extraction was carried out using maceration with chloroform, solvent recovery as a means of purification was ...
Abdulkarim Shuaib, Shehu Isah
core   +1 more source

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