期刊
CARBOHYDRATE POLYMERS
卷 173, 期 -, 页码 121-130出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2017.05.083
关键词
Chitosan; Coatings; Biomaterials; Corrosion; Biocompatibility
资金
- National Research Foundation of Korea [2015R1C1A1A01054482, 2015R1D1A1A01060907]
- National Research Foundation of Korea [2015R1C1A1A01054482, 2015R1D1A1A01060907] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Advanced biomedical materials can potentially be developed from combinations of natural biodegradable polymers and synthetic polymers. We synthesized bioactive composites based on polypyrrole/chitosan through in-situ electrochemical polymerization in oxalic acid medium. Surface characterization results revealed the influence of chitosan inclusion on polypyrrole (PPy) surface morphology. Contact angle results confirmed the enhancement in surface hydrophilicity due to the addition of chitosan into the PPy matrix. Electrochemical corrosion studies revealed that the composite coatings showed enhanced protective performance compared to pure PPy. Further, we investigated the effect of the composite coatings on the growth of MG-63 human osteoblast cells to assess their biocompatibility. Monte Carlo simulations were engaged to assess the interactions between the metal surface and composite coatings. The composite containing equal parts PPy and chitosan was found to be biocompatible; together with the corrosion protection results, the findings indicated that this bioactive coating material has potential for use in 316L SS implants. (C) 2017 Elsevier Ltd. All rights reserved.
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