Spectroscopy and Spectral Analysis, Volume. 33, Issue 9, 2379(2013)
Preparation of Chitosan/Strontium-Substituted Hydroxyapatite Films on Titanium and Its FTIR Characteristics
Chitosan/strontium-substituted hydroxyapatite (CHI/SrHAP) coatings were prepared on titanium substrate by electrochemical deposition technique containing Sr2+, Ca2+, PO3-4 and Chitosan. The as-prepared coatings were examined by scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) tests. The results indicate that the CHI/SrHAP coatings take the morphology of flake-like rather than the needle-like crystal , and the composite coating becomes more compact. The FTIR test indicates that the typical vibration absorption peaks of chitosan (amideⅠand amideⅡ) emerged, simulated body fluid immersion test proved that the CHI/SrHAP coatings had induced carbonate-apatite formation, indicating that the composite coating possesses excellent biocompatibility. In the electrochemical corrosion testing, that the CHI/SrHAP coatings showed stronger corrosion resistance than pure Ti.
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HUANG Yong, HAN Shu-guang, DING Qiong-qiong, YAN Ya-jing, PANG Xiao-feng. Preparation of Chitosan/Strontium-Substituted Hydroxyapatite Films on Titanium and Its FTIR Characteristics[J]. Spectroscopy and Spectral Analysis, 2013, 33(9): 2379
Received: Jan. 18, 2013
Accepted: --
Published Online: Sep. 30, 2013
The Author Email: Yong HUANG (hyuestc199@yahoo.cn)