Electrophoretic Deposition of Nanobiocomposites for Orthopedic Applications: Influence of Contained Water in Suspension

Chitosan (CS) nanocomposite coatings containing bioglass 45s5 (BG), hydroxyapatite (HA), and halloysite nanotube (HNT) were developed on Titanium (Ti) by electrophoretic deposition (EPD) from ethanol-water suspensions. The optimal water ratio in the ethanolic suspension was studied in order to avoid...

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Bibliographic Details
Published in:Protection of metals and physical chemistry of surfaces 2019-03, Vol.55 (2), p.302-309
Main Authors: Molaei, A., Yousefpour, M. A.
Format: Article
Language:English
Subjects:
Biocompatibility
Bioglass
Biomedical materials
Body fluids
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chitosan
Corrosion and Coatings
Corrosion resistance
Electrochemical analysis
Electrophoretic deposition
Ethanol
Fourier transforms
Hydroxyapatite
In vitro methods and tests
Industrial Chemistry/Chemical Engineering
Infrared analysis
Inorganic Chemistry
Materials Science
Metallic Materials
Morphology
Nanocomposites
Nanoscale and Nanostructured Materials and Coatings
Nyquist plots
Protective coatings
Scanning electron microscopy
Substrates
Surgical implants
Titanium
Tribology
X-ray diffraction
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Summary:Chitosan (CS) nanocomposite coatings containing bioglass 45s5 (BG), hydroxyapatite (HA), and halloysite nanotube (HNT) were developed on Titanium (Ti) by electrophoretic deposition (EPD) from ethanol-water suspensions. The optimal water ratio in the ethanolic suspension was studied in order to avoid the bubble formation during the EPD process and to ensure homogeneous coatings. The smooth and non-agglomerated coating was fabricated in the ethanol-based suspension containing 30% water. Coating composition was analyzed by Energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) analyses. Scanning electron microscopy (SEM) was employed to study the surface morphology of the coatings. The electrochemical behavior of the coatings, evaluated by polarization curves and Nyquist plots in the corrected simulated body fluid (C-SBF) at 37°C, was studied in order to assess the corrosion resistance of the Ti substrate.
ISSN:2070-2051
2070-206X
DOI:10.1134/S2070205119020217