Self-assembled structures of hydroxyapatite in the biomimetic coating on a bioinert ceramic substrate
| Autor: | Jui Chakraborty, Mithlesh Kumar Sinha, Soumi Sarkar, Debabrata Basu, S. Chatterjee |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Ceramics
Materials science Surface Properties Simulated body fluid engineering.material law.invention Colloid and Surface Chemistry Coated Materials Biocompatible X-Ray Diffraction Coating Biomimetic Materials law Spectroscopy Fourier Transform Infrared Ceramic Particle Size Physical and Theoretical Chemistry Composite material Porosity Surfaces and Interfaces General Medicine Tribology Microstructure Durapatite Bioactive glass visual_art engineering visual_art.visual_art_medium Wetting Biotechnology |
| Zdroj: | Colloids and Surfaces B: Biointerfaces. 66:295-298 |
| ISSN: | 0927-7765 |
| DOI: | 10.1016/j.colsurfb.2008.06.019 |
| Popis: | The tribological properties of alumina ceramic are excellent due in part to a high wettability because of the hydrophilic surface and fluid film lubrication that minimizes the adhesive wear. Such surfaces are further modified with bioactive glass/ceramic coating to promote direct bone apposition in orthopedic applications. The present communication reports the biomimetic coating of calcium hydroxyapatite (HAp) on dense (2-3% porosity) alumina (alpha-Al(2)O(3)) substrate (1cm x 1cm x 0.5 cm), at 37 degrees C. After a total period of 6 days immersion in simulated body fluid (SBF), at 37 degrees C, linear self-assembled porous (pore size: approximately 0.2 microm) structures (length: approximately 375.39 microm and width: 5-6 microm) of HAp were obtained. The phenomenon has been demonstrated by self-assembly and diffusion-limited aggregation (DLA) principles. Structural and compositional characterization of the coating was carried out using SEM with EDX facility, XRD and FT-IR data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect