نتایج جستجو برای: polyvinylpyrrolidone k 30
تعداد نتایج: 869245 فیلتر نتایج به سال:
To use the "apparent diffusion coefficient" (Dapp) as a quantitative imaging parameter, well-suited test fluids are essential. In this study, the previously proposed aqueous solutions of polyvinylpyrrolidone (PVP) were examined and temperature calibrations were obtained. For example, at a temperature of 20°C, Dapp ranged from 1.594 (95% CI: 1.593, 1.595) μm2/ms to 0.3326 (95% CI: 0. 3304, 0.334...
Artemether-lumefantrine is World Health Organization approved fixed dose combination for malaria treatment. These drugs have poor bioavailability due to low solubility and dissolution. The objective of this work was improve by increasing dissolution both drugs. In solid dispersion using hydrophilic carriers like polyvinylpyrrolidone K-30, Soluplus Lutrol F68 solvent evaporation technique prepar...
Purpose: Solubilizers play an important role in dissolution of pharmacological ingredients and should properly dissolve the active principle(s) while preserving its activities. This study investigated the effect of starch, gelatin, methylcellulose and polyvinylpyrrolidone 10000 in the preservation of the androgenic activity of the methanol extract Basella alba (MEBa). Methods: Different groups ...
Our aim in this work is the synthesis and study optical and structural properties of gold nanoparticles.Gold (III) chloride trihydratewas taken as metal precursor, ascorbic acid at the presence of an appropriate amount of NaOH as reducing agent and polyvinylpyrrolidonek-30 (PVP K-30) as a stabilizing and capping agent. The reaction was performed in high-speed stirring rate at room temperature.S...
Nanoparticles of rubidium cobalt hexacyanoferrate (RbjCok[Fe(CN)6]l · nH2O) were synthesized using different concentrations of polyvinylpyrrolidone (PVP) to produce four different batches of particles with characteristic diameters ranging from 3 to 13 nm. Upon illumination with white light at 5 K, the magnetization of these particles increases. The long-range ferrimagnetic ordering temperatures...
چکیده برای هزاران سال، کورکومین در شرق به عنوان یک عامل درمانی برای طیف گسترده ای از بیماری های التهابی، نئوپلاستی و دیگر شرایط استفاده شده است. در سال های اخیر، پتانسیل درمانی بزرگی برای این ترکیب در برابر بیماری های مختلف انسان از جمله سرطان، بیماری های قلبی و عروقی، دیابت، ورم مفاصل، بیماری های عصبی و بیماری hivگزارش شده است. این ترکیب اثرات خود را از طریق کاهش بروز فاکتورهای نسخه برداری ا...
Photodynamic inactivation (PDI) may be a very promising alternative method for the antimicrobial treatment of periodontitis. Several studies have demonstrated the sensitivity of subgingival flora to PDI using toluidine blue, methylene blue, and chlorin e6 derivatives. In the present study we report the activity of the Fotolon sensitizer, composed of chlorin e6 and polyvinylpyrrolidone (PVP), ag...
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