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Erschienen in: Journal of Polymer Research 3/2020

01.03.2020 | Original Paper

Facile preparation PCL/ modified nano ZnO organic-inorganic composite and its application in antibacterial materials

verfasst von: Laijun Liu, Yu Zhang, Chaojing Li, Jiacheng Cao, Er He, Xiaotong Wu, Fujun Wang, Lu Wang

Erschienen in: Journal of Polymer Research | Ausgabe 3/2020

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Abstract

Due to its good biodegradability and biocompatibility, polycaprolactone (PCL) has attracted widespread attention in the field of biomedical materials. Incorporation of Zinc oxide (ZnO) into PCL has been proved an effective way to improve its antibacterial properties. However, the interfacial compatibility of the organic-inorganic system needs to be improved due to the agglomeration of nanoparticles and phase separation of ZnO and PCL matrix affect its antibacterial efficiency. In this research, the ZnO surface was modified with citric acid monohydrate (CA) to improve the interfacial properties of ZnO-PCL system. The surface modification of ZnO was analyzed by DLS, TEM, TGA, and XPS. The results suggest that CA coating process can significantly reduce the agglomeration of ZnO nanoparticles and improve dispersion stability. The uniform PCL/ZnO-CA membranes with various nanofiller contents were fabricated through the solvent casting method. DSC and TGA analysis showed that the presence of ZnO-CA nanoparticles slightly decreased the crystallinity and thermal stability of the polymer. And ZnO-CA loaded improved the mechanical properties and wettability of the composite PCL membranes. Moreover, the composite PCL membranes showed good antibacterial activity against both E. coli and S. aureus while exhibiting good cytocompatibility, which indicated that the antibacterial and no cytotoxicity biomaterials had promising application in the biomedical field.

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Metadaten
Titel
Facile preparation PCL/ modified nano ZnO organic-inorganic composite and its application in antibacterial materials
verfasst von
Laijun Liu
Yu Zhang
Chaojing Li
Jiacheng Cao
Er He
Xiaotong Wu
Fujun Wang
Lu Wang
Publikationsdatum
01.03.2020
Verlag
Springer Netherlands
Erschienen in
Journal of Polymer Research / Ausgabe 3/2020
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI
https://doi.org/10.1007/s10965-020-02046-z

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