Tham khảo tài liệu 'properties and applications of silicon carbide part 12', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 322 Properties and Applications of Silicon Carbide template is the determination of the chemical nature of the carbonaceous species at the surface Cicoira Rosei 2006 . Bioceramic nanocomposites were synthesized by sintering compacted bodies of hydroxyapatite mixed with 5 or 15 wt nanosilicon carbide at 1100 or 1200 C in a reducing atmosphere. The results indicate that the composite of 95 wt hydroxyapatite and 5 wt SiC exhibited better mechanical and biological properties than pure hydroxyapatite and further addition of SiC failed strength and toughness Hesaraki et al. 2010 . The preparation of nano-sized silicon carbide has received considerable attention because it allows the preparation of bulk materials with increased plasticity Stobierski Gubernat 2003 or nanocomposites with enhanced mechanical and tribological properties. In conclusion it opens up exciting possibilities in the area of template-assisted growth at the nanoscale. 14. Drug delivery Drug delivery systems DDS are an area of study in which researchers from almost every scientific discipline can make a significant contribution. Understanding the fate of drugs inside the human body is a high standard classical endeavor where basic and mathematical analysis can be used to achieve an important practical end. No doubt the effectiveness of drug therapy is closely related to biophysics and physiology of drug movement through tissue. Therefore DDS requires an understanding of the characteristics of the system the molecular mechanisms of drug transport and elimination particularly at the site of delivery. In the last decade DDS have received much attention since they can significantly improve the therapeutic effects of the drug while minimizing its side recent years Poly D L-Lactide PLA and Poly D L-Lactide-co-Glycolide PLGA have been extensively investigated for use as implantable biodegradable carriers for controlled release of drugs. Silicon carbide coated stents have been coated with a layer of
