期刊
BIOMACROMOLECULES
卷 15, 期 10, 页码 3655-3663出版社
AMER CHEMICAL SOC
DOI: 10.1021/bm500939x
关键词
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资金
- Chinese Scholarship Council, the Academy of Finland [130588, 263656]
- K.S.M [268144]
- Graduate School of Chemical Engineering (J.L.)
- Academy of Finland (AKA) [263656, 130588, 263656, 130588] Funding Source: Academy of Finland (AKA)
In this work, flexible and free-standing composite films of nanofibrillated cellulose/polypyrrole (NFC/PPy) and NFC/PPy-silver nanoparticles (NFC/PPy-Ag) have been synthesized for the first time via in situ one-step chemical polymerization and applied in potential biomedical applications. Incorporation of NFC into PPy significantly improved its film formation ability resulting in composite materials with good mechanical and electrical properties. It is shown that the NFC/PPy-Ag composite films have strong inhibition effect against the growth of Gram-positive bacteria, e.g., Staphylococcus aureus. The electrical conductivity and strong antimicrobial activity makes it possible to use the silver composites in various applications aimed at biomedical treatments and diagnostics. Additionally, we report here the structural and morphological characterization of the composite materials with Fourier-transform infrared spectroscopy, atomic force microscopy, and scanning and transmission electron microscopy techniques.
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