Preparation and characterization of chitosan/poly(vinyl alcohol)/graphene oxide films and studies on their antibiofilm formation activity

• Published in: Journal of biomedical materials research. Part A Vol. 108; no. 10; pp. 2015 - 2022
• Main Authors: Ying, Ye, Wu, Yunbo, Huang, Jianying
• Format: Journal Article
• Language: English
• Published: Hoboken, USA John Wiley & Sons, Inc 01.10.2020; Wiley Subscription Services, Inc
• Subjects: Antibacterial activity; antibiofilm formation; Biomedical materials; Casting; Chitosan; Composite materials; Evaporation; Food packaging; Fourier analysis; Fourier transforms; Graphene; graphene oxide; Infrared analysis; Infrared spectroscopy; Mechanical properties; Oxide coatings; Packaging; poly(vinyl alcohol); Polyvinyl alcohol; Pseudomonas aeruginosa; Pseudomonas aeruginosa PAO1; Scanning electron microscopy; Thermal resistance; Thermal stability; Thermogravimetric analysis; Water resistance; chitosan; graphene oxide; Pseudomonas aeruginosa PAO1; antibiofilm formation; poly(vinyl alcohol)
• ISSN: 1549-3296; 1552-4965
• DOI: 10.1002/jbm.a.36961

Biocomposite films containing graphene oxide (GO), poly(vinyl alcohol) (PVA), and chitosan (CS) were prepared using the casting/evaporation technique. These as‐prepared films were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Results showed that these three component films could be well mixed in certain conditions and the GO sheets were well dispersed. The better performances such as the water resistance, thermal stability, and mechanical properties have been improved. Meanwhile, good antibacterial activity and antibiofilm formation activity of the prepared CS/PVA/GO films were exhibited against Pseudomonas aeruginosa PAO1. The resulting biocomposite films with combination of CS, PVA, and GO advantages have desirable properties and should be suitable for food and medical packaging applications.