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Corrosion resistance of a composite polymeric coating applied on biodegradable AZ31 magnesium alloy ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
578 51 2013 11 PDF Available
Title
Corrosion resistance of a composite polymeric coating applied on biodegradable AZ31 magnesium alloy ☆
Abstract

The high corrosion rate of magnesium alloys is the main drawback to their widespread use, especially in biomedical applications. There is a need for developing new coatings that provide simultaneously corrosion resistance and enhanced biocompatibility. In this work, a composite coating containing polyether imide, with several diethylene triamine and hydroxyapatite contents, was applied on AZ31 magnesium alloys pre-treated with hydrofluoric acid by dip coating. The coated samples were immersed in Hank’s solution and the coating performance was studied by electrochemical impedance spectroscopy and scanning electron microscopy. In addition, the behavior of MG63 osteoblastic cells on coated samples was investigated. The results confirmed that the new coatings not only slow down the corrosion rate of AZ31 magnesium alloys in Hank’s solution, but also enhance the adhesion and proliferation of MG63 osteoblastic cells, especially when hydroxyapatite nanoparticles were introduced in the coating formulation.

Keywords
Polymeric coating; Magnesium alloy; Hydroxyapatite; Corrosion resistance; Cytocompatibility
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Corrosion resistance of a composite polymeric coating applied on biodegradable AZ31 magnesium alloy ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 9, Issue 10, November 2013, Pages 8660–8670
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us