Ion release
Investigation of Nickel Ion Release from Stainless Steel Crowns by Square Wave Voltammetry
... nickel ion release from stainless steel crowns in artificial saliva at different days and pH’s has been investigated which is used in pediatric ...nickel ion release was decreased with ...
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<p>Ion release of chitosan and nanodiamond modified glass ionomer restorative cements</p>
... the ion release from the CH and ND modi fi cations signi fi cantly increased the activity of the GICs and would therefore translate into a greater movement of ions into the tooth structure as ...of ion ...
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Effect of mobile phone use with and without earphones on salivary nickel ion release from fixed orthodontic appliances: A Cross Over Trial
... Dwivedi A et al 52 in 2015 compared the compared the level of nickel and chromium in the saliva of 13 patients undergoing fixed orthodontic treatment at different time periods. The saliva samples were taken at different ...
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Effect of mobile phone with and without earphones usage on metal ion release from fixed orthodontic appliances
... distribut ion (N=60) in the anal ysis of ni ckel l evel di fferences bet ween the pati ent s using mobile phone with headset and pati ents without heads et t o ass ess the overall effect of speaki ng ti ...
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Electrochemical Behaviour of Ti-20Nb-10Zr-5Ta Alloy in Simulated Physiological Fluids after Anodic Electrolytic Oxidation
... potentiodynamic polarisation curves in simulated physiological solutions revealed that all main electrochemical parameters exhibited more favourable values for the galvanostatic oxidation alloy than those for the bare ...
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Evaluation of the Corrosion of Five Different Bracket-Archwire Combination: An In-vitro Analysis Using Inductively Coupled Plasma Mass Spectrometry
... measuring ion release in an in-vitro ...nickel release was more profound. Moreover the amount of ion release in our samples was higher com- pared to similar ...in ion ...
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TheraCal lc: an extensive literature review
... The release of calcium by ProRoot MTA, during the first three days of testing, is ...an ion-leaching material that is able to release calcium and hydroxyl ions for at least 28 days; furthermore, a ...
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A Review on Surface Coatings on 316L Stainless Steel to Improve Biomedical Properties
... and release of toxic ions from the surface are the basic disadvantages which this material prone to ...corrosion, ion release or wear, without compromising the mechanical properties of the ...
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CoCr wear particles generated from CoCr alloy metal-on-metal hip replacements, and cobalt ions stimulate apoptosis and expression of general toxicology-related genes in monocyte-like U937 cells
... 302 303 Metal ion release into cell culture medium 304 Metal debris was incubated, in the absence of U937 cells, under different conditions in order 305 to analyse the effects that some [r] ...
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Controlled delivery of antimicrobial gallium ions from phosphate-based glasses
... of ion exchange, hydration and finally hydrolysis of the phosphate chains while in solution ...of ion exchange, a hydrated gel layer is usually formed on the glass surface and when it leaches into the ...
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Electrochemical and Surface Characterization of a New Ti-Ta- Zr Alloy Covered with Biomimetic Bovine Serum Albumin
... Values of the corrosion parameters show that the corrosion current densities, corrosion rates, and Ion release rates for the covered alloy decreased of about 10 times and polarization re[r] ...
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A laboratory study evaluating the pH of various modern root canal filling materials
... The alkaline pH of root canal filling materials, depen- dant on hydroxide ion release, appears to be responsible for their antibacterial effect. Estrela et al. have proved that at a pH greater than 9, ...
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Chemical characterization of some substituted hydroxyapatites
... solutions. The examined surface of the immersed discs under SEM and analyzed by CDS showed a more dense HA layer than those of un-substituted ones. The HA with the substituted silicon and carbonate ions, showed the ...
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(De)constructing the Ryanodine Receptor: Modeling Ion Permeation and Selectivity of the Calcium Release Channel
... of ion permeation and selectivity: (1) the movement of ions down their chemical potential gradients (eq 1) with self-consistently computed electrostatics, 46 (2) ...
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The load and release characteristics on a strong cationic ion-exchange fiber: kinetics, thermodynamics, and influences
... cationic ion-exchange fiber ZB-1 used in this study was obtained from Guilin Zhenghan Co, Ltd, (Guangxi, People’s Republic of China), with a maximum ion-exchange capacity of about ...
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Calcium Ion Permeation through the Calcium Release Channel (Ryanodine Receptor) of Cardiac Muscle
... Figure 8 compares Ca ++ currents measured at zero applied membrane potential with those calculated by the extended PNP and barrier models. Figure 8A shows the effects of increasing Ca ++ concentrations on the electrical ...
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Towards a Safer Environment: (9) Remediation of heavy metals from low quality water in asir region southwestern of Saudi Arabia
... mean release of Ca and P into solution and formation of pyromorphite (lead phosphate) as consuming of ...– ion exchange mechanism) concerned with adsorption of ions on the solid surface followed by their ...
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Ion ion and ion solvent interactions
... Ionic Crystals ii Molten Salts iii The "expajided" Model iv The "confined" Model v Oscillator Strengths vi 'The "square well" Approximation 1 The "points of attachment" postulate 2 Mixed[r] ...
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Controlled Release Ion Sensitive Floating Oral In Situ Gel of a Prokinetic Drug Using Gellan Gum
... release at 6h and viscosity, the ratios were computed as 14.886 and 46.498, respectively. The polynomial equa- tions for responses Y1, Y2 and Y3 depict the relation between the factors and responses. The ...
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ION EXCHANGE RESINS: AN APPROACH TOWARDS TASTE MASKING OF BITTER DRUGS AND SUSTAINED RELEASE FORMULATIONS WITH THEIR PATENTS
... The frequency of administration or the dosing interval of a drug depends upon its half-life and therapeutic index. With many drugs the basic goal is to achieve a steady – state blood or tissue level that is ...
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