Results 41 to 50 of about 225,803 (294)

Adsorption of Eriochrome Black-T(EBT) using tea waste as a low cost adsorbent by batch studies: A green approach for dye effluent treatments

open access: yesCurrent Research in Green and Sustainable Chemistry, 2020
The potential of using tea waste as a low-cost adsorbent for the removal of Eriochrome Black-T (EBT), an anionic dye from aqueous solution was studied.
Megha Bansal   +2 more
doaj   +1 more source

Separation of (2E,4E)-deca-2,4-dienal from a Biocatalytic Reaction Mixture Using Hydrophobic Adsorbents

open access: yesSeparations, 2023
Biocatalytic oxidation of a fatty acid preparation by enzymes released from a plant extract provided (2E,4E)-deca-2,4-dienal (2,4-DDAL), a valuable natural aroma.
Marta Ostrihoňová   +5 more
doaj   +1 more source

Equilibrium relationships for non-equilibrium chemical dependencies

open access: yes, 2010
In contrast to common opinion, it is shown that equilibrium constants determine the time-dependent behavior of particular ratios of concentrations for any system of reversible first-order reactions.
Constales, Denis   +2 more
core   +1 more source

Optimisation of solvent replacement procedures according to economic and environmental criteria in pharmaceutical industry [PDF]

open access: yes, 2006
During pharmaceutical syntheses, the reaction solvent has often to be switched off from one reaction step to the following one. Because of the standard industrial practices, solvent replacement generally constitutes a slow and high solvent-consuming ...
Cabassud, Michel   +3 more
core   +2 more sources

Experimental investigation of titanium dioxide as an adsorbent for removal of Congo red from aqueous solution, equilibrium and kinetics modeling

open access: yesJournal of Water Reuse and Desalination, 2020
The adsorption of Congo red onto titanium dioxide (TiO2) material has been investigated at batch conditions. The effects of contact time (0–60 min), initial pH (3–11), agitation speed (100–500 rpm), temperature (298–343 K), adsorbent dosage (0.5–2 g/L ...
Moussa Abbas
doaj   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Modelling the kinetics of transesterification reaction of sunflower oil with ethanol in microreactors [PDF]

open access: yes, 2013
Transesterification reaction of vegetable oil with ethanol leads to ethyl esters, used to date for applications principally in food and cosmetic industry.
Prat, Laurent E.   +2 more
core   +4 more sources

Equilibrium threshold joining strategies in partially observable batch service queueing systems

open access: yesAnnals of Operations Research, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Olga Bountali, Antonis Economou
openaire   +2 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Liquid–Liquid Equilibrium Data and Continuous Process Concept for the Electrosynthesis of Valeric Acid from Levulinic Acid

open access: yesFrontiers in Energy Research, 2020
Aiming toward a scalable continuous electrochemical production of valeric acid, the mutual insolubility of valeric acid with the aqueous reaction medium of levulinic acid and the aqueous electrolyte are investigated in order to assess the possibility for
Moritz C. Rehbein   +7 more
doaj   +1 more source

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