Journal
CARBOHYDRATE POLYMERS
Volume 176, Issue -, Pages 38-49Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2017.08.051
Keywords
CNC-ZnO nanohybrids; PHBV; Nanocomposites; In vitro degradation; Hydrolytic mechanism
Categories
Funding
- National Natural Science Foundation of China [51403187]
- public technology research plan of Zhejiang Province, China [2017C37014]
- 521 Talent Project of Zhejiang Sci-Tech University
- Open fund in Top Priority Discipline of Zhejiang Province in Zhejiang Sci-Tech University [2015YXQN04, 2016YXQN07]
- Grants-in-Aid for Scientific Research [15H01789] Funding Source: KAKEN
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Fabrication and characterization of bbiodegradable nanocomposites based on poly (3-hydroxybutyrate-co-3hydroxyvalerate) (PHBV) matrix reinforced with cellulose nanocrystal (CNC)-ZnO nanohybrids via simple solution casting for possible use as antibacterial biomedical materials is reported. The obtained nanocomposites exhibited an excellent antibacterial ratio of 95.2-100% for both types of bacteria namely S. aureus and E. coll. and showed 9-15% degradation after one week. The addition of CNC-ZnO showed a positive effect on hydrophilicity and barrier properties. More significantly, the nanocomposites with 10 wt% CNC-ZnO showed enhancement in tensile strength (140.2%), Young's modulus (183.1%), and the maximum decomposition temperature (Tmax) value increased by 26.1 degrees C. Moreover, this study has provided a possible mechanism for using such nanofillers on the hydrolytic degradation of PHBV, which was beneficial to obtain the high-performance nanocomposites with modulated degradation rate for antibacterial biomaterials.
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