title: [Preparation of chitosan/strontium-substituted hydroxyapatite films on titanium and its FTIR characteristics].
abstract: Chitosan/strontium-substituted hydroxyapatite (CHI/SrHAP) coatings were prepared on titanium substrate by electrochemical deposition technique containing Sr2+, Ca2+, PO4(3-) 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 (amide I and amide II) 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.
authors.affiliation: Key Laboratory of Bio-electromagnetic and Bio-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054, China. hyuestc199@yahoo.com
authors.forename: Yong
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Key Laboratory of Bio-electromagnetic and Bio-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
authors.forename: Shu-guang
authors.initials: SG
authors.lastname: Han
authors.affiliation: Key Laboratory of Bio-electromagnetic and Bio-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
authors.forename: Qiong-qiong
authors.initials: QQ
authors.lastname: Ding
authors.affiliation: Key Laboratory of Bio-electromagnetic and Bio-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
authors.forename: Ya-jing
authors.initials: YJ
authors.lastname: Yan
authors.affiliation: Key Laboratory of Bio-electromagnetic and Bio-electronic Technology, University of Electronic Science and Technology of China, Chengdu 610054, China.
authors.forename: Xiao-feng
authors.initials: XF
authors.lastname: Pang
mesh_terms: D001031:Apatites; D001826:Body Fluids; D048271:Chitosan / Q000737:chemistry*; D020099:Coated Materials, Biocompatible; D003343:Corrosion; D055664:Electrochemical Techniques; D006882:Hydroxyapatites / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013324:Strontium / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D001031:Apatites; D020099:Coated Materials, Biocompatible; D006882:Hydroxyapatites; C076185:strontium hydroxyapatite; C030782:carboapatite; D048271:Chitosan; D014025:Titanium; D013324:Strontium