نتایج جستجو برای: ionic strength

تعداد نتایج: 245063  

Journal: :The Journal of biological chemistry 1998
S J Quinn O Kifor S Trivedi R Diaz P Vassilev E Brown

The calcium-sensing receptor (CaR) is activated by small changes in extracellular calcium [Ca2+]o) in the physiological range, allowing the parathyroid gland to regulate serum [Ca2+]o; however, the CaR is also distributed in a number of other tissues where it may sense other endogenous agonists and modulators. CaR agonists are polycationic molecules, and charged residues in the extracellular do...

Journal: :Blood 1976
B N Bouma J A van Mourik S de Graaf J M Hordijk-Hos J J Sixma

Since dialysis of human factor VIII against buffers of low ionic strength yielded two distinct components, and since the factor VIII fraction isolated from normal plasma showed von Willebrand factor activity as defined by the corrective effect on abnormal platelet retention and ristocetin aggregation in von Willebrand's disease, the present studies were performed to determine if the correcting ...

1992
Sae Yong Hong Hyun Kill Shin Dong Ho Yang

In order to evaluate the influence of dilution, pH and ionic strength on the precipitation of t-PA and PAI-1 during euglobulin precipitation, we measured t-PA Ag, PAI-1 Ag and fibrinolytic activity in the euglobulin fraction made of pooled plasma from liver cirrhosis patients, under various conditions by changing pH, ionic strength and degree of dilution. The precipitation of t-PA Ag in the eug...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2016
Adam J Fuller Samuel Shaw Caroline L Peacock Divyesh Trivedi Ian T Burke

Strontium is an important contaminant radionuclide at many former nuclear sites. This paper investigates the effect of changing pH and ionic strength on the sorption of Sr to a range of common soil minerals. Specifically it focuses on the sorption of Sr onto illite, chlorite, goethite, and a mixed sediment. The interplay between ionic strength and pH was determined by varying the background ion...

2003
DAVID G. JEWETT

-The influence of ionic strength and pH on the transport of Pseudomonasfluorescens PI7 in porous media was investigated using continuous-flow laboratory columns and a rapid screening technique in which radiolabeled cells were applied to large-pore, glass-fiber filters. Colloid-filtration theory was used to interpret P17 transport results in the two systems. Bacterial retention was directly rela...

2010
Thejani E. Rajapaksa Kaila M. Bennett Mary Hamer Christian Lytle Victor G. J. Rodgers David D. Lo

In mucosal tissues, epithelial M cells capture and transport microbes across the barrier to underlying immune cells. Previous studies suggested that high affinity ligands targeting M cells may be used to deliver mucosal vaccines; here, we show that particle composition and dispersion buffer ionic strength can independently influence their uptake in vivo. First, addition of a poloxamer 188 to na...

2011
Xiaodi Liu Jianmin Ma Wenjun Zheng

]cWT PbcUTfSTRPSTbX]XR[XdXSb ?b qVaTT]rb[eT]cbWPeTPcaPRcTScaT T] dous attention in the inorganic nanomaterials synthesis owing to their unique physico-chemical properties, such as nonvolatile, negligible vapor pressure, low toxicity, and high thermal stability. Most recently, many technological advances have occurred in the use of ILs, served as solvents, reactants, or templates, in the synthes...

2013
Yuriko Kondo Tahahiro Koyama Shinya Sasaki

An ionic liquid is a liquid salt consisting of anions and cations. Since Wilkes [1] synthesized a low melting point ionic liquid that is stable in air in 1992, there has been active fundamen‐ tal research and engineering development directed at applications. In the field of tribology, where application is focused toward lubricants, the number of related papers [3]-[28] has in‐ creased every yea...

2014
Khashayar Ghandi

Since environmental pollution caused by chemical and energy industries has increased for several decades, there is a social expectation that scientists and engineers try to design sustainable chemical processes, to generate less hazardous materials and more environmentally friendly sources of energy production. In this review the roles of Ionic Liquids (ILs) and IL based solvent systems as prop...

2011
Teck Nam Ang Li Wan Yoon Kiat Moon Lee Gek Cheng Ngoh Adeline Seak May Chua Min Gyu Lee

Ionic liquids that dissolve cellulose provide an option to pretreat lignocellulosic biomass. In this study, potential application of three ionic liquids in pretreating rice husk and their abilities in dissolving rice husk cellulose were investigated. The ionic liquids applied were 1-butyl-3methylimidazolium chloride ([BMIM]Cl), 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc), and 1-ethyl-3-meth...

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