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Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
Published on: February 23, 2017
A novel ordered nano hydroxyapatite coating electrochemically deposited on titanium substrate.
Ren Hu1, Chang-Jian Lin, Hai-Yan Shi
1State Key Laboratory of Physical Chemistry of Solid Surfaces and Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, People's Republic of China.
Journal of Biomedical Materials Research. Part A
|November 17, 2006
Summary
A novel porous nano hydroxyapatite (HA) coating was developed using electrochemical deposition. This biocompatible and bioactive coating exhibits a unique nano-micro structure, promoting cell adhesion for potential bone regeneration applications.
Area of Science:
- Biomaterials Science
- Materials Chemistry
- Nanotechnology
Background:
- Commercially pure titanium (CP-Ti) is widely used in biomedical implants.
- Enhancing the osseointegration of titanium implants is crucial for successful clinical outcomes.
- Hydroxyapatite (HA) coatings can improve the biological response of titanium implants.
Purpose of the Study:
- To develop a novel porous nano hydroxyapatite (HA) coating on a titanium substrate.
- To characterize the physico-chemical and biological properties of the synthesized HA coating.
- To evaluate the potential of the HA coating for bone regeneration applications.
Main Methods:
- Modified electrochemical deposition was employed to prepare the HA coating.
- Scanning Electron Microscopy (SEM) was used to analyze surface morphology.
- X-ray Diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), and Raman Spectroscopy were utilized for material characterization.
- In vitro cell culture tests with MG63 human osteosarcoma cells were performed to assess biocompatibility and bioactivity.
Main Results:
- A uniform microporous morphology with nanometer-scale wirelike crystals was observed.
- The HA coating exhibited a unique nano-micro two-level structure with ordered, c-axis preferentially perpendicular nanowires.
- Spectroscopic analyses confirmed the coating's main component as well-crystallized HA.
- In vitro tests showed significant interdigitation of MG63 cells with the HA nanowires, indicating excellent biocompatibility and bioactivity.
Conclusions:
- The modified electrochemical deposition method successfully produced a porous nano HA coating on titanium.
- The coating possesses a unique hierarchical structure and excellent crystallinity.
- The observed cell-substrate interaction demonstrates the promising biocompatibility and bioactivity of the nano HA coating for orthopedic applications.
