توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Study on Gelatin\Ag Nanofiber for biomedical Application
نویسنده(ها): ،
اطلاعات انتشار: کنفرانس بین المللی فرآورش پلیمرها، سال
تعداد صفحات: ۴
A series of new and commercially available polymers have been proposed as matrices for cell regeneration and proliferation for tissue engineering applications but lot of questions like interaction of scaffolds with biological systems, toxicity, in vivo studies etc. In this Study Gelatin\Ag nanofibers were prepared via electrospinning using aqueous solutions of acetic acid\water as the solvent instead of cylotoxic solvents. The parameters, such as electric field, concentration of solutions and spinning distance were examined for studying the effects on spinability and morphology of gelatin nanofibers mats. The lowest diameter of gelatin nanofibers was achieved when the gelatin concentration was 10%. Morphology of nanofibres was examined by scanning electron microscopy and diameter distribution and uniformity were measured with image analyzer software. The antibacterial activities of nano silver in nanofibers were calculated by percent reduction of Staphylococcus aurous. The results showed that the spinability of gelatin strongly depend on the solvent used. The results of antibacterial test indicated excellent antibacterial effect on all specimens against S. aurous.<\div>

۲Comprehensive Study upon the Application of Rare Earth Magnets in Mineral Processing by using osmium nano particles
نویسنده(ها): ، ،
اطلاعات انتشار: همایش ملی شیمی پاک، سال
تعداد صفحات: ۴
In this letter, the important role of rare earth magnets in mineral processing has been investigated. We know very well that New advances in permanent magnet technology have led to the development of a new generation of permanent rare earth industrial magnetic separators[1–3]. The excellent separation efficiency of these rare earth magnetic separators has resulted in elevation of super processing conventional electromagnetic high–intensity magnetic separators for many applications [4]. One example of this technology is the osmium nano particle magnetic separator which has been successfully installed for mineral processing applications. Also, in this letter, utilizing the Osmium nano particles in a novel application of removing ash and pyritic sulfur from coal samples is presented. In this work, we are investigating new applications for high–intensity permanent magnetic separators.One obvious point is the reduction of ash and sulfur contents of coal. Pass over the Osmium nano particles unit[5,6]. Useful reductions in the sulfur content of the smaller size fraction were also achieved .It can be seen that a significant reduction in ash has been achieved in the smaller size fraction after one pass over the Osmium nano particles unit. Useful reductions in the sulfur content of the smaller size fraction were also achieved.<\div>
نمایش نتایج ۱ تا ۲ از میان ۲ نتیجه