Recent advances in multifunctional hydroxyapatite coating by electrochemical deposition

Bio-ceramic hydroxyapatite (HA) coating has been commonly used to repair the bones or as the functionalized surface of bone substitutes due to its excellent biocompatibility, superior osteo-inductivity, and great corrosion resistance. Among many other methods for synthesizing HA coating, coating via...

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Bibliographic Details
Published in:Journal of materials science 2020-05, Vol.55 (15), p.6352-6374
Main Authors: Li, Ting-Ting, Ling, Lei, Lin, Mei-Chen, Peng, Hao-Kai, Ren, Hai-Tao, Lou, Ching-Wen, Lin, Jia-Horng
Format: Article
Language:English
Subjects:
Biocompatibility
Biomedical materials
Cathodic polarization
Ceramic coatings
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Coated electrodes
Coatings
Corrosion resistance
Crystallography and Scattering Methods
Degree of crystallinity
Electrode polarization
Electrolysis
Electrolytes
Hydroxyapatite
Ion concentration
Materials Science
Morphology
Optimization
Organic chemistry
Parameters
Polymer Sciences
Review
Solid Mechanics
Substitute bone
Substrates
Surface structure
Surgical implants
Ultrasonic processing
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Summary:Bio-ceramic hydroxyapatite (HA) coating has been commonly used to repair the bones or as the functionalized surface of bone substitutes due to its excellent biocompatibility, superior osteo-inductivity, and great corrosion resistance. Among many other methods for synthesizing HA coating, coating via the electrochemical deposition has a high degree of crystallinity and purity, which fits the nonlinear, complex, and rugged substrates. Furthermore, HA coating can be adjusted in terms of coating morphology, thickness, and chemical component via changing the parameters, such as electrolyte ion concentration, electrolyte composition, deposition current density, and deposition time, etc. Nevertheless, the properties of electrodeposited HA coating highly pertain to the bubbles generated by water electrolysis on the substrate surface as well as the concentration polarization of electrolyte ions near the cathode during the electrodeposition process. In this study, the critical factors and mechanisms of HA coating using the electrochemical deposition method are comprehensively evaluated, thereby examining the effects of parameter optimization (i.e., current mode, ultrasonic treatment, and postprocessing). Finally, the influences of ion substitution and HA composite coating on the surface structure and properties of the HA-based coatings are also discussed.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-020-04467-z