Results 241 to 250 of about 2,134,301 (294)
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High ionic strength electrokinetics
Advances in Colloid and Interface Science, 2004The electrokinetic potentials at high ionic strengths can be measured by means of electroacoustic method. The reported values are surprisingly high: up to 25 mV in 1 mol dm(-3) 1:1 electrolyte solution. The IEP of metal oxides in concentrated solutions of 1:1 electrolytes shifts to substantially higher pH values with respect to the pristine value ...
Marek, Kosmulski, Jarl B, Rosenholm
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Ionic strength effects on nucleoproteins
International Journal of Biochemistry, 1978Abstract 1. 1. Homogenization of calf (Bos bovinus) thymus cells in 0.15 M triethanolamine hydrochloride (TEA-HC1) prior to the extraction of deoxyribonucleoprotein (DNP) with 0.01 M glycine results in the recovery of a fractionated DNP when compared to extracts from cells initially exposed to lower ionic strength TEA-HC1 solutions. 2. 2. The
P, Scipione, L, Messineo
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Ionic Strength and Myofibrillar Protein Solubilization
Journal of Animal Science, 1987Myofibrils from bovine longissimus muscle were obtained at 2 h postmortem and incubated in .10 to .35 M ionic strength buffers under various conditions in vitro. Increasing ionic strength or increasing the incubation time from 1 to 72 h decreased the turbidity of suspensions of myofibrils and increased myofibrillar solubilization (P less than .01 for ...
F Y, Wu, S B, Smith
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Derivation of a benchmark for freshwater ionic strength
Environmental Toxicology and Chemistry, 2012Abstract Because increased ionic strength has caused deleterious ecological changes in freshwater streams, thresholds for effects are needed to inform resource-management decisions. In particular, effluents from surface coal mining raise the ionic strength of receiving streams. The authors developed an aquatic life benchmark for specific
Susan M, Cormier +2 more
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Charged Dislocations and the Strength of Ionic Crystals
Philosophical Magazine, 1958Abstract If the energies required to form positive and negative ion vacancies in an ionic crystal are unequal, then in thermal equilibrium dislocations in the crystal will be electrically charged and surrounded by a Debye-Huckel cloud of vacancies. If the vacancy cloud is immobile a finite force is required to separate the dislocation from the cloud ...
J. D. Eshelby +3 more
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Muscle Contraction: the Effect of Ionic Strength
Nature, 1968CONTRACTILE responses are depressed and may be abolished in muscles that are shrunken by exposure to hyperosmotic media; they are enhanced when the muscles are swollen in hyposmotic media1–4. The effects of hyperosmotic solutions have been ascribed5 to “dissociation of electromechanical coupling”, but earlier work4,6 had shown that the processes of ...
E, April +3 more
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The effect of the ionic strength on G-bands
Human Genetics, 1975The most important factors, for direct demonstration of G-bands, are the ionic strength and the dye concentration of the staining solution. Sorensen buffer, ionic strength 0.10 and 0.50 vol% Giemsa produce G-banding of human metaphase chromosomes.
T, Mäkinen +2 more
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Macromolecular Rapid Communications, 2012
AbstractResponsive polyelectrolyte multilayers (PEMs) of poly(diallyl dimethyl ammonium chloride) (PDADMAC) and poly(styrene sodium sulfonate) (PSS) with thicknesses between 350 and 400 nm for 11 deposited polyelectrolyte layers were fabricated assembling the polyelectrolytes at 3 M NaCl.
Joseba Irigoyen +5 more
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AbstractResponsive polyelectrolyte multilayers (PEMs) of poly(diallyl dimethyl ammonium chloride) (PDADMAC) and poly(styrene sodium sulfonate) (PSS) with thicknesses between 350 and 400 nm for 11 deposited polyelectrolyte layers were fabricated assembling the polyelectrolytes at 3 M NaCl.
Joseba Irigoyen +5 more
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Science's STKE, 2006
Bacteria, which may be exposed to widely varying osmotic conditions, respond to hyperosmotic stress by accumulating solutes. For instance, the ABC (ATP-binding cassette) transporter OpuA of Lactococcus lactis takes up glycine betaine to combat water loss and cell shrinkage.
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Bacteria, which may be exposed to widely varying osmotic conditions, respond to hyperosmotic stress by accumulating solutes. For instance, the ABC (ATP-binding cassette) transporter OpuA of Lactococcus lactis takes up glycine betaine to combat water loss and cell shrinkage.
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1960
Abstract : THE STRENGTH OF IONIC SOLIDS IS DISCUSSED IN TERMS OF THEIR RESISTANCE TO FRACTURE. PARTICULAR EMPHASIS IS GIVEN TO THEIR EXTRAORDINARY NOTCH SENSITIVITY. IONIC SINGLE CRYSTALS CAN EXHIBIT CONSIDERABLE DUCTILITY BEFORE FRACTURE PROVIDING THE STRAIN IS LOW ENOUGH AND THE TEMPERATURE HIGH ENOUGH.
R. J. STOKES, C.H. LI, T. L. JOHNSTON
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Abstract : THE STRENGTH OF IONIC SOLIDS IS DISCUSSED IN TERMS OF THEIR RESISTANCE TO FRACTURE. PARTICULAR EMPHASIS IS GIVEN TO THEIR EXTRAORDINARY NOTCH SENSITIVITY. IONIC SINGLE CRYSTALS CAN EXHIBIT CONSIDERABLE DUCTILITY BEFORE FRACTURE PROVIDING THE STRAIN IS LOW ENOUGH AND THE TEMPERATURE HIGH ENOUGH.
R. J. STOKES, C.H. LI, T. L. JOHNSTON
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