Back to Search
Start Over
A novel method to synthesize hydroxyapatite coating with hierarchical structure
- Source :
- Colloids and Surfaces B: Biointerfaces. 82:637-640
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- A novel process has been developed for the preparation of a hydroxyapatite (HA) coating with a hierarchical structure on a Ti substrate. The Ti substrate was first subjected to electrolytic deposition at −1.6 V (versus Ag/AgCl/KCl) in a solution of 0.042 M Ca(NO 3 ) 2 ·4H 2 O and 0.025 M NH 4 H 2 PO 4 at 85 °C for 3 min, and then post-treated in a 0.25 M NaOH solution, with the addition of 0.05 M Na 3 Cit at 85 °C for 5 h. The experimental results showed that the coating experienced a phase conversion from octacalcium phosphate to HA after the post-treatment step. The HA coating had well-distributed, micro-sized pores comprising three-dimensional interconnected mesoporous HA belts, which would greatly increase the porosity and surface area of the coating.
- Subjects :
- Time Factors
Materials science
Surface Properties
Electrolyte
engineering.material
chemistry.chemical_compound
Colloid and Surface Chemistry
Coated Materials, Biocompatible
Coating
Materials Testing
Physical and Theoretical Chemistry
Porosity
Octacalcium phosphate
Deposition (law)
Titanium
Metallurgy
Temperature
Substrate (chemistry)
Surfaces and Interfaces
General Medicine
Durapatite
Chemical engineering
chemistry
Microscopy, Electron, Scanning
Hydroxyapatite coating
engineering
Crystallization
Mesoporous material
Biotechnology
Subjects
Details
- ISSN :
- 09277765
- Volume :
- 82
- Database :
- OpenAIRE
- Journal :
- Colloids and Surfaces B: Biointerfaces
- Accession number :
- edsair.doi.dedup.....dbd310180a09b3b45d97d9385b76ac3b