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

Abstract

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.

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Correspondence to M. A. Yousefpour.

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Molaei, A., Yousefpour, M.A. Electrophoretic Deposition of Nanobiocomposites for Orthopedic Applications: Influence of Contained Water in Suspension. Prot Met Phys Chem Surf 55, 302–309 (2019). https://doi.org/10.1134/S2070205119020217

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  • DOI: https://doi.org/10.1134/S2070205119020217

Keywords:

  • electrophoretic
  • electrophoresis
  • electrolysis
  • water
  • coating