The corrosion and biological behavior of 3D-printed polycaprolactone/chitosan scaffolds as protective coating for Mg alloy implants

Khoshnood, Negin; Frampton, John P.; Alavi Zaree, Seyed Reza; Jahanpanah, Maryam; Heydari, Pardis; Zamanian, Ali

doi:10.1016/j.surfcoat.2023.130368

Cited by 4 publications

(1 citation statement)

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“…Additionally, in our work, the micro-grooves of the laser-textured samples could be filled with PCL and PCL/TiO 2 nanofiber layer deposition. Khoshanood et al [ 79 ] indicated the better corrosion behavior of the AZ31 alloy as a result of the deposition hybrid PCL/chitosan scaffold coatings. Catauro et al [ 80 ] investigate the influence of surface modification by the deposition of an inorganic TiO 2 matrix with different percentages of PCL by the sol–gel method.…”

Section: Resultsmentioning

confidence: 99%

Influence of Hybrid Surface Modification on Biocompatibility and Physicochemical Properties of Ti-6Al-4V ELI Titanium

Woźniak,

Smok,

Szewczenko

et al. 2024

JFB

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Titanium-based materials are the most widely used materials in biomedical applications. However, according to literature findings, the degradation products of titanium have been associated with potential allergic reactions, inflammation, and bone resorption. The corrosion process of Ti-6Al-4V in the human body environment may be exacerbated by factors such as reduced pH levels and elevated concentrations of chloride compounds. Coatings made of biopolymers are gaining attention as they offer numerous advantages for enhancing implant functionality, including improved biocompatibility, bioactivity, wettability, drug release, and antibacterial activity. This study analyzes the physicochemical and electrochemical behavior of the Ti-6Al-4V ELI alloy subjected to PCL and PCL/TiO2 deposition by the electrospinning method. To characterize the polymer-based layer, tests of chemical and phase composition, as well as surface morphology investigations, were performed. Wetting angle tests were conducted as part of assessing the physicochemical properties. The samples were subjected to corrosion behavior analysis, which included open circuit potential measurements, potentiodynamic tests, and the electrochemical impedance spectroscopy method. Additionally, the quantification of released ions post the potentiodynamic test was carried out using the inductively coupled plasma atomic emission spectrometry (ICP–AES) method. Cytotoxicity tests were also performed. It was found that surface modification by depositing a polymer-based layer on the titanium substrate material using the electrospinning method provides improved corrosion behavior, and the samples exhibit non-toxic properties.

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Section: Resultsmentioning

confidence: 99%