title: Controlling the electrodeposition, morphology and structure of hydroxyapatite coating on 316L stainless steel.
abstract: Hydroxyapatite (HAp) coatings were prepared on 316L stainless steel (316LSS) substrates by electrochemical deposition in the solutions containing Ca(NO3)2·4H2O and NH4H2PO4 at different electrolyte concentrations. Along with the effect of precursor concentration, the influence of temperature and H2O2 content on the morphology, structure and composition of the coating was thoroughly discussed with the help of X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectra. The in vitro tests in simulated body fluids (SBF) were carried out and then the morphological and structural changes were estimated by SEM and electrochemical techniques (open circuit potential, polarization curves, Nyquist and Bode spectra measurements). Being simple and cost-effective, this method is advantageous for producing HAp implant materials with good properties/characteristics, aiming towards in vivo biomedical applications.
authors.affiliation: Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi, Viet Nam. dmthanh@itt.vast.vn
authors.forename: Dinh Thi Mai
authors.initials: DT
authors.lastname: Thanh
authors.forename: Pham Thi
authors.initials: PT
authors.lastname: Nam
authors.forename: Nguyen Thu
authors.initials: NT
authors.lastname: Phuong
authors.forename: Le Xuan
authors.initials: le X
authors.lastname: Que
authors.forename: Nguyen Van
authors.initials: NV
authors.lastname: Anh
authors.forename: Thai
authors.initials: T
authors.lastname: Hoang
authors.forename: Tran Dai
authors.initials: TD
authors.lastname: Lam
mesh_terms: D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D004560:Electricity; D004566:Electrodes; D004573:Electrolytes / Q000737:chemistry; D004595:Electroplating / Q000379:methods*; D006861:Hydrogen Peroxide / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D008970:Molecular Weight; D012996:Solutions; D013052:Spectrometry, X-Ray Emission; D017550:Spectroscopy, Fourier Transform Infrared; D013193:Stainless Steel / Q000737:chemistry*; D013696:Temperature; D013997:Time Factors; D014961:X-Ray Diffraction
chemical_list: D020099:Coated Materials, Biocompatible; D004573:Electrolytes; D012996:Solutions; D013193:Stainless Steel; D017886:Durapatite; D006861:Hydrogen Peroxide