Results 201 to 210 of about 2,178,025 (238)
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An explanation for the charge on water’s surface
Physical Chemistry Chemical Physics, 2009Measurements with different techniques point to a strong affinity of hydroxide ions for interfaces between water and hydrophobes, but some spectroscopic experiments do not detect excess hydroxide at the interface, while others do. Hydroxide ions are unusual in that they reduce the relative permittivity of an electrolyte solution more than other ...
Angus, Gray-Weale, James K, Beattie
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Explosion of a Surface Cord Charge
Moscow University Mechanics Bulletin, 2020zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Microbial Adhesion to Surfaces with Different Surface Charges
Acta Odontologica Scandinavica, 1981The adhesion behaviour of Streptococcus sanguis was studied on well-defined stearic and behenic acid multilayers which were prepared by depositing fatty acids on a solid substrate according to the Langmuir-Blodgett technique. Using this technique and by adjustment of the substrate pH it was possible to form outer surfaces consisting of either close ...
K, Larsson, P O, Glantz
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Distribution of surface electric charge in a surface DBD
2012 Abstracts IEEE International Conference on Plasma Science, 2012Summary form only given. For more than one decade, the surface dielectric barrier discharge (SDBD) has been extensively studied in aerodynamic applications as electro-hydrodynamic (EHD) actuators [1]. The SDBD was also largely studied for air pollution treatment due to the lower discharge ignition voltage and the larger contact surface with catalyst ...
Dong, Binjie +2 more
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Surface charge, surface dipoles and membrane conductance
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1973Abstract The conductance of lipid membranes in the presence of nonactin is changed by the adsorption of small amounts of ionic and zwitterionic surfactants. The conductance changes are, in many instances, not accounted for by the variation in surface charge or diffuse double layer potential as calculated from Gouy-Chapman theory.
D A, Haydon, V B, Myers
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Engineering Surface Charges in a Subtilisin
1996Introduction of multiple charged amino acid residues in the subtilisin Savinase by genetic engineering allowed us to modify the electrostatic properties of this enzyme in a systematic way. The effects of these charge changes were investigated theoretically with the calculated electrostatic potential at the enzyme surface and experimentally using ion ...
M R, Egmond +4 more
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The Surface Charge of Tritrichomonas foetus
The Journal of Eukaryotic Microbiology, 1982ABSTRACTThe surface charge of Tritrichomonas foetus was evaluated by means of the binding of colloidal iron hydroxide particles at pH 1.8 and cationized ferritin particles at pH 7.2 to the cell surface, as visualized by electron microscopy and by direct measurements of the electrophoretic mobility (EPM), of cells suspended in solutions of different ...
F, Costa e Silva Filho +2 more
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Bone Morphogenesis and Surface Charge
Clinical Orthopaedics and Related Research, 1976The electrophoretic mobility of variously treated bone specimens, with and without bone morphogenetic activity, has been measured in physiological solutions. The Bone Morphogenetic Principle appears to be associated with a minimum negative surface charge on the implant that corresponds to that of normal undemineralized cortical bone in saline ...
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pH and Surface Charge Switchability on Bifunctional Charge Gradients
Langmuir, 2018Multifunctionalized pH-sensitive silica gradients containing acidic and basic functional groups have been prepared to evaluate how the spatial arrangement of active sites on a surface influences the surface charge and pH switchability. The gradient surfaces were prepared using controlled rate infusion in such a manner that the individual gradients in ...
Kayesh M. Ashraf +3 more
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Charging of water at inert surface
2012Electrokinetic measurements of bubbles (argon or nitrogen) in aqueous electrolyte solution obeyed negative surface charge (charge of stagnant interfacial water layer) in the region of pH > 3, and positive in the region pH < 3 [1]. This finding was interpreted as preferential accumulation of OH– ions at the surface, with respect to H3O+ ions ...
Begović, Tajana +3 more
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