Results 81 to 90 of about 14,906 (298)

Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo   +4 more
wiley   +1 more source

Birch Bark Dry Extract by Supercritical Fluid Technology: Extract Characterisation and Use for Stabilisation of Semisolid Systems

open access: yesApplied Sciences, 2017
Triterpene compounds like betulin, betulinic acid, erythrodiol, oleanolic acid and lupeol are known for many pharmacological effects. All these substances are found in the outer bark of birch.
Markus Armbruster   +4 more
doaj   +1 more source

Coupling of Supercritical Fluid Extraction with Chromatography

open access: yesAnalytical Sciences, 1991
Coupling methods between supercritical fluid extraction (SFE) and various chromatographic techniques have been reviewed. Developments using supercritical fluids in chromatography have been tremendous and a confirmation of the usefulness of this technique (called supercritical fluid chromatography (SFC)) has been evidenced by many scientists.
JINNO, Kiyokatsu, SAITO, Muneo
openaire   +2 more sources

Rock mechanical properties under reconstructed deep in situ thermo–hydro–mechanical conditions: Implications for CO₂‐related injection scenarios

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates a reconstructed in situ thermo‐hydro‐mechanical (THM) framework in which porosity serves as the central variable linking stress, pore pressure, and temperature to evolving mechanical properties of rocks. Under burial conditions, in situ stress, pore pressure, and temperature jointly govern volumetric strain and ...
Mingyuan Lu   +5 more
wiley   +1 more source

Circular and Bio‐Sourced Polymers for Energy Applications: Natural Feedstocks, Recycling, and Upcycling Routes

open access: yesEcoEnergy, EarlyView.
This review provides a critical comparative analysis of circular and bio‐sourced polymers for energy storage, systematically evaluating natural feedstocks alongside recycling and upcycling strategies for battery components. Key structure–property–performance relationships and inherent trade‐offs between sustainability metrics and electrochemical ...
Priyank Sinha   +3 more
wiley   +1 more source

Extracting phospholipids from gum using liquified dimethyl ether versus supercritical fluid carbon dioxide

open access: yesJournal of Agriculture and Food Research
Gum discarded from the degumming stage of refining crude rice bran oil is a good source of phospholipids (PLs), which are widely used in the food, feed, pharmaceutical, and cosmetic industries due to their unique properties and health benefits supporting
Sudthida Kamchonemenukool   +3 more
doaj   +1 more source

Unstable slow oscillations couple with epileptogenic fast‐rhythm bistability in sleep‐related epilepsy: A stereoelectroencephalographic study

open access: yesEpilepsia, EarlyView.
We examined the functional relationship between large‐scale δ‐band phase synchrony and local epileptogenic β–γ‐band amplitude bistability during NREM sleep. Increased synchrony and strong bistability characterized the epileptogenic zone, with strongest effects during N2 sleep, when seizures most frequently occur.
Gaia Burlando   +14 more
wiley   +1 more source

Supercritical Fluid Extraction from Mango (Mangifera indica L.) Leaves: Experiments and Modeling

open access: yesChemical Engineering Transactions, 2013
Recent studies reported that mango (Mangifera indica L.) leaves are an important source of phytochemicals, which have beneficial effects on human health.
W. Dos Santos, A. Silva E, O.P. Taranto
doaj   +1 more source

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