Results 61 to 70 of about 2,653,426 (391)

Recent trends in metals extraction [PDF]

open access: yes, 2015
After near 70 years of practical usage, solvent extraction is a perfectly mastered technique of separation, widely used on an industrial scale for the separation of metals mainly from raw materials.
Alguacil, Francisco José   +1 more
core   +2 more sources

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

The Effect of Extraction Temperature and Solvent to Oil Ratio on Viscosity Index of Mixed-medium Lubricating Oil Fraction by Using Solvents Extraction

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2009
In this study two types of extraction solvents were used to extract the undesirable polyaromatics, the first solvent was furfural which was used today in the Iraqi refineries and the second was NMP (N-methyl-2-pyrrolidone).
Abdul-Halim A. Mohammed   +1 more
doaj  

Extraction Techniques for Polycyclic Aromatic Hydrocarbons in Soils

open access: yesInternational Journal of Analytical Chemistry, 2010
This paper aims to provide a review of the analytical extraction techniques for polycyclic aromatic hydrocarbons (PAHs) in soils. The extraction technologies described here include Soxhlet extraction, ultrasonic and mechanical agitation, accelerated ...
E. V. Lau, S. Gan, H. K. Ng
doaj   +1 more source

Effect of Solvent Extraction Parameters on the Recovery of Oil From Spent Coffee Grounds for Biofuel Production

open access: yesWaste and Biomass Valorization, 2017
Spent coffee grounds (SCG) are a potentially valuable source of lipids for sustainable production of biofuels. However, there are several feedstock properties and solvent extraction parameters that can impact on the oil yield and quality, potentially ...
Ioannis Efthymiopoulos   +4 more
semanticscholar   +1 more source

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

Solvent Extraction: Principles and Practices ☆

open access: yes, 2018
Recent advances in analytical chemistry are characterized by great progress toward more powerful methods of separation, equaling in significance the great forward strides made in instrument methods of determination. Problems of chemical analysis almost always involve two steps; separation of the desired constituent and measurement of the amount or ...
Pabby, Anil Kumar   +1 more
openaire   +3 more sources

Correlating physico-chemical properties of analytes with Hansen solubility parameters of solvents using machine learning algorithm for predicting suitable extraction solvent

open access: yesScientific Reports
Artificial neural networks (ANNs) are biologically inspired algorithms designed to simulate the way in which the human brain processes information. In sample preparation for bioanalysis, liquid–liquid extraction (LLE) represents an important step with ...
Eman A. Mostafa   +8 more
doaj   +1 more source

Efficient Extraction of Bioactive Flavonoids from Ginkgo biloba Leaves Using Deep Eutectic Solvent/Water Mixture as Green Media [PDF]

open access: yesChemical and Biochemical Engineering Quarterly, 2018
Deep eutectic solvent (DES)/water mixture as alternative extraction solvent was proposed for the efficient extraction of Ginkgo flavonoids from Ginkgo biloba leaves.
M. Yang, J. Cao, F. Cao, C. Lu, E. Su
doaj   +1 more source

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

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