Journal
MATERIALS LETTERS
Volume 180, Issue -, Pages 42-46Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2016.04.035
Keywords
Biomaterials; Biodegradable Mg; Zn doping; DCPD coating; Corrosion; Antibacterial property
Funding
- National Natural Science Foundation of China [51271117, 51571142]
- Science and Technology innovation project of Shanghai [14441901800]
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Zn was doped into DCPD coating on high purity Mg (HP Mg) via electrochemical deposition and the microstructure, corrosion resistance and antibacterial behavior were studied. The results showed that Zn doped DCPD coating possessed typical flake-like structure with about 20 mu m in width and 50-100 mu m in length. Corrosion current density was decreased in electrochemical test, indicating the corrosion resistance of HP Mg was improved by the coating. The Zn doped DCPD on Mg samples exhibited higher anti-adherent bacteria rate at 24 h and 72 h towards S. aureus (98.3 +/- 0.3% and 91.3 +/- 1.6%, respectively), and most adhered bacteria were dead or lose vitality examined by CLSM and SEM, showing excellent antibacterial property of this coating. (C) 2016 Elsevier B.V. All rights reserved.
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