In this section, you can access to the latest technical information related to the FUTURE project topic.

A sandwich-like chitosan-based antibacterial nanocomposite film with reduced graphene oxide immobilized silver nanoparticles

Bacterial breeding is the main cause of food perishability, which is harmful to human health. Silver nanoparticles (AgNPs) are one of the most widely used antimicrobial agents, but they are easy to release and cause cumulative toxicity. In this work, with corn stalk as green reductant and GO as template, a simple electrostatic self-assembled sandwich-like chitosan (CS) wrapped [email protected] nanocomposite film (CS/[email protected]) was synthesized to achieve stabilizing and controlled-release of AgNPs. The results showed that the the CS/[email protected] film continued releasing AgNPs for up to 14 days, and the final release amount of silver nanoparticles was only about 1.9 %. More importantly, the nanocomposite film showed durable antibacterial effect and good antibacterial activity against E. coli and S. aureus, and they showed no toxicity to cells. Hence, the nanocomposite film has potential application as an effective and safe packaging material to prolong the shelf life of food products.

» Author: Bin Gu, Qimeng Jiang, Bichong Luo, Chuanfu Liu, Junli Ren, Xiaohui Wang, Xiaoying Wang

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