Topologically ordered magnesium‐biopolymer hybrid composite structures

Magnesium and its alloys are intriguing as possible biodegradable biomaterials due to their unique combination of biodegradability and high specific mechanical properties. However, uncontrolled biodegradation of magnesium during implantation remains a major challenge in spite of the use of alloying...

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Bibliographic Details
Published in:Journal of biomedical materials research. Part A 2015-01, Vol.103 (1), p.311-317
Main Authors: Oosterbeek, Reece N., Seal, Christopher K., Staiger, Mark P., Hyland, Margaret M.
Format: Article
Language:English
Subjects:
Biodegradability
Biomedical materials
Biopolymers - chemistry
Corrosion
degradable magnesium implant
Hybrid composites
interpenetrating network composite
Magnesium
Magnesium - chemistry
Magnesium base alloys
magnesium polymer composite
Materials Testing
Mechanical properties
Microscopy, Electron, Scanning
porous magnesium
Surgical implants
Three dimensional
topologically ordered
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Summary:Magnesium and its alloys are intriguing as possible biodegradable biomaterials due to their unique combination of biodegradability and high specific mechanical properties. However, uncontrolled biodegradation of magnesium during implantation remains a major challenge in spite of the use of alloying and protective coatings. In this study, a hybrid composite structure of magnesium metal and a biopolymer was fabricated as an alternative approach to control the corrosion rate of magnesium. A multistep process that combines metal foam production and injection molding was developed to create a hybrid composite structure that is topologically ordered in all three dimensions. Preliminary investigations of the mechanical properties and corrosion behavior exhibited by the hybrid Mg‐polymer composite structures suggest a new potential approach to the development of Mg‐based biomedical devices. © 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 103A: 311–317, 2015.
ISSN:1549-3296
1552-4965
DOI:10.1002/jbm.a.35175