Comparative Study on Preparation and Characterization of Bioactive Coatings for Biomedical Applications – a Review on Recent Patents and Literature
نویسندگان
چکیده
Up to now, there are enormous efforts to develop such coatings that can enhance the biocompatibility properties of metallic implant materials (Ti, Ti6Al4V, CoCrMo, stainless steel) and even provide antimicrobial effect. The most interesting candidates for these coatings are calcium phosphate (CaP) or specifically hydroxyapatite (HAp) phases due to their biocompatibility, osteoconductive properties, and chemical similarity to the inorganic phase of human bone. The ionic modification of CaP phases can improve the biocompatibility property of materials even more. This review provides an overview of the recent results achieved on the preparation methods of pure and ion-substituted calcium phosphates as well as their characterization. In addition, we summarize the effect of ion modification (Si, Sr, Mg, Zn, Fe, Cu, and Ag) on the crystal structure and biological properties of coatings as well as the biological role of ion-substituents.
منابع مشابه
A Brief Review of Nanoindentation Technique and its Applications in Hybrid Nanocomposite Coatings
Nanoindentation techniques are widely used for the study of nanomechanical properties of thin nanocomposite coatings. Theoretical concepts and practical use of nanoindentation method are summarized with reporting the applications of these tests in characterization of some particular thin nanocomposite hybrid coatings prepared by sol-gel process. The better mechanical properties can be obtained ...
متن کاملA Brief Review of Nanoindentation Technique and its Applications in Hybrid Nanocomposite Coatings
Nanoindentation techniques are widely used for the study of nanomechanical properties of thin nanocomposite coatings. Theoretical concepts and practical use of nanoindentation method are summarized with reporting the applications of these tests in characterization of some particular thin nanocomposite hybrid coatings prepared by sol-gel process. The better mechanical properties can be obtained ...
متن کاملA review on the prevalent fabrication methods, microstructural, mechanical properties, and corrosion resistance of nanostructured hydroxyapatite containing bilayer and multilayer coatings used in biomedical applications
Surface treatments of the biomaterials are of great interest in many biomedical applications. Hydroxyapatite is a favorable candidate for surface modification of the implants. To date, a wide variety of methods have been developed to produce bio-active/biocompatible coatings with desirable features in order to improve the performance of the implants. This paper strives to overview the present p...
متن کاملتهیه و ارزیابی پوشش کامپوزیتی نانوساختار هیدروکسی آپاتیت- فورستریت- شیشه زیست فعال برای کاشتنی های پزشکی
Despite excellent bioactivity of bioactive ceramics such as hydroxyapatite, their clinical applications have been limited due to their poor mechanical properties. Using composite coatings with improved mechanical properties could be a solution to this problem. Therefore, the strength of metal substrate and the bioactivity of the improved composite coating combined could yield suitable results. ...
متن کاملPreparation and characterization of PEG/Dextran coated superparamagnetic Iron Oxide (Fe3O4) nanoparticles for biomedical applications
Recent progress in nanotechnology and electrochemical methods can be applied to fine control of the size, crystal structure, and surface properties of iron oxide nanoparticles. Here we appliedcathodic electrochemical deposition (CED) as an efficient and effective tactic for synthesisand double coating of surface of superparamagnetic iron oxide nanoparticles (SPIONs). In first step, bare Fe3O4 n...
متن کامل