4.7 Article

Soluble Soybean Polysaccharide/Carrageenan Antibacterial Nanocomposite Films Containing Green Synthesized Silver Nanoparticles

期刊

ACS APPLIED POLYMER MATERIALS
卷 4, 期 8, 页码 5608-5618

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsapm.2c00635

关键词

soluble soybean polysaccharide; carrageenan; silver nanoparticles; mechanical property; silver-ammonia complex; nanocomposite film; antibacterial

资金

  1. Science and Technology Department of Henan Province, China [172102410022]
  2. National Natural Science Foundation of China [U2004211]

向作者/读者索取更多资源

This study developed nanocomposite films based on soluble soybean polysaccharide (SSPS), carrageenan (CG), and green synthesized silver nanoparticles (AgNPs). The addition of CG significantly improved the mechanical properties, thermal stability, and water resistance of the films. The nanocomposite films also showed antibacterial activity against Escherichia coli and Staphylococcus aureus, suggesting their potential in food and pharmaceutical packaging applications.
This study aimed to develop nanocomposite films based on a soluble soybean polysaccharide (SSPS), carrageenan (CG), and green synthesized silver nanoparticles (AgNPs) by a solution casting technique. AgNPs were obtained by reducing a silver-ammonia complex using a SSPS as both a stabilizing and reducing agent, which was confirmed by UV-vis spectroscopy, Xray diffraction (XRD), transmission electron microscopy, and X-ray photoelectron spectroscopy. CG was introduced into the SSPS/ AgNP matrix as a reinforcing component to strengthen the nanocomposite films. The results indicate that the addition of CG led to significantly enhanced mechanical properties, thermal stability, and water resistance of the films. The XRD and Fourier transform infrared spectroscopy results reveal strong interactions between AgNPs and polysaccharide chains. Compared with the SSPS/CG films without AgNPs, the SSPS/CG/AgNP nanocomposite films exhibited antibacterial activity against Escherichia coli and Staphylococcus aureus. The results suggest that the SSPS/CG/AgNP antibacterial nanocomposite films have great potential in food and pharmaceutical packaging applications.

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