نتایج جستجو برای: mgcl2 and kcl

تعداد نتایج: 16828130  

Journal: :The Biochemical journal 1993
L Agius M Peak

The release of glucokinase from digitonin-permeabilized hepatocytes shows different characteristics with respect to ionic strength and [MgCl2] from the release of other cytoplasmic enzymes. Release of glucokinase is most rapid at low ionic strength (300 mM sucrose, 3 mM Hepes) and is inhibited by increasing concentration of KCl [concn. giving half-maximal inhibition (I50) 25 mM] or Mg2+ (I50 0....

2016
Jiangning Liu Bing Li Xingfu Song Jin Wang Jianguo Yu

The cathodic reduction of SiO2 in KCl-CaCl2-NaCl-MgCl2 melt was studied using tungsten wires as working electrodes. The results of cyclic voltammetry square wave voltammetry and chronopotentiometry showed that the cathodic deposition of silicon is a quasi-reversible diffusion-controlled reaction, followed by a four electrons transfer step. The results of current reversal chronopotentiometry and...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2007
gholamabbas parsafar afra panahi

in this work we have applied the dense system equation of state (dseos) to electrolyte solutions. we have found that this equation of state can predict the density of electrolyte solutions very accurately. it has been tested for different electrolytes solutions at different temperatures and compositions. a hypothetical binary model has been applied to find the dependencies of parameters of this...

Journal: :Journal of cell science 1978
K Fukuyama T Murozuka R Caldwell W L Epstein

Keratin was extracted from purified cornified cells of newborn rats in Tris-HCl-buffered 8 M urea containing beta-mercaptoethanol. Microfilaments were assembled in vitro by reducing the ionic strength of buffer and the urea concentration. One millimolar concentration of KCl and NaCl did not affect filament formation, but the same concentration of divalent cations greatly altered this process. C...

2017
Bernard T. Drumm Grant W. Hennig Matthew J. Battersby Erin K. Cunningham Tae Sik Sung Sean M. Ward Kenton M. Sanders Salah A. Baker

Drugs and solutions All tissues were perfused and maintained with KRB solution containing (mmol/liter): 120.35 NaCl, 15.5 NaHCO3, 5.9 KCl, 1.2 MgCl2, 1.2 NaH2PO4, 2.5 CaCl2, and 11.5 glucose. The KRB solution warmed to a physiological temperature of 37 ± 0.2°C and bubbled with a mixture of 97% O2–3% CO2. For experiments using external solutions with zero [Ca]o, CaCl2 was omitted and 1 mM EGTA w...

2014
Lixia Bian Yanyan Fang Xiaolin Wang

The transmembrane electrical potential (TMEP) in a forward osmosis membrane process with a single electrolyte solution as the draw and feed solutions was investigated by experiments. The effects of membrane orientation, the electrolyte species (KCl, NaCl, MgCl2, and CaCl2), concentration and concentration ratio of solutions at both sides of membrane on water flux and TMEP were investigated. The...

Journal: :The Journal of biological chemistry 1980
H L Yin T P Stossel

We describe the purification procedure and some of the physiochemical properties of gelsolin, a major Ca2+-dependent regulatory protein of actin gel-sol transformation in rabbit lung macrophages. Gelsolin accounts for the majority of Ca2+ control of actin gelation in macrophage extracts. It is a single polypeptide chain with an average molecular weight of 91,000 a Stokes radius of 44 A, a sedim...

2007
Martin Z. Bazant John Paul Urbanski Jeremy A. Levitan Kapil Subramanian Mustafa Sabri Kilic Andrew Jones Todd Thorsen

This paper reports the first investigation of the dependence of AC electro-osmosis (ACEO) on the solution chemistry. It is argued that classical dilute-solution theory breaks down in ACEO, since the large applied voltage leads to ion crowding near the electrode surfaces. A modified theory is proposed with steric effects (finite ion sizes) and a charge-dependent viscoelectric effect, which predi...

Journal: :FEBS letters 1983
D M Waisman J Muranyi M Ahmed

A novel Ca2+ binding protein, named caligulin, was extracted from the heat-treated 100 000 X g supernatant of bovine brain and purified to electrophoretic homogeneity. The apparent Mr of caligulin determined on sodium dodecyl sulfate polyacrylamide gels was 24000. Analysis by gel filtration chromatography indicated an apparent Mr of 33000, suggesting a monomeric protein. Amino acid composition ...

2006
Zhenhao Duan Nancy Moller John H. Weare

An equation of state (EOS) is developed for salt-water systems in the high temperature range. As an example of the applications, this EOS is parameterized for the calculation of density, immiscibility, and the compositions of coexisting phases in the CaCl2-H2O and MgCl2-H2O systems from 523 to 973 K and from saturation pressure to 1500 bar. All available volumetric and phase equilibrium measure...

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