Abstract
Three different types of sulfur nanoparticles (SNP) were prepared and used to prepare functional chitosan/SNP composite films. The composite films were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The optical, mechanical, water vapor barrier (WVP), thermal stability, and antibacterial properties of the composite films were also analyzed. The SEM analysis showed that the SNP were dispersed evenly in the chitosan film. Incorporation of SNP enhanced the hydrophobicity, mechanical strength, and water vapor barrier property as well as antimicrobial activity of the chitosan film depending on the type of SNP. Among the SNP composite films, SNP capped with chitosan (SNP3) composite film exhibited the strongest antimicrobial activity against food-borne pathogenic Gram-negative (Escherichia coli) and Gram-positive (Listeria monocytogenes) bacteria with complete sterilization within 6 h and 12 h, respectively. The chitosan/SNP composite films have high potential to be used as antimicrobial food packaging films or wound dressings in biomedical applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
