» Articles » PMID: 37049314

High-Performance, Degradable, Self-Healing Bio-Based Nanocomposite Coatings with Antibacterial and Antioxidant Properties

Overview
Date 2023 Apr 13
PMID 37049314
Authors
Affiliations
Soon will be listed here.
Abstract

The purpose of this study is to obtain a bio-based coating with good functional activity and self-healing ability, demonstrating its potential in food, materials, and other application fields. Plastic coatings can cause serious environmental pollution. It was a good solution to replace plastic coatings with degradable coatings. However, the development of degradable coatings in the fields of food and materials was limited due to their insufficient antibacterial ability and weak comprehensive properties. Therefore, chitosan nanoparticles (NPs) loaded with gallic acid (GA) were self-assembled with gelatin (GE) to prepare high-performance, degradable, self-healing bio-based nanocomposite coatings with antibacterial and antioxidant properties. The oxygen permeability of GE nanocomposite coatings decreased gradually with the addition of NPs, and the barrier properties increased significantly. At the same time, due to the excellent antioxidant and antibacterial ability of GA, the antioxidant effect of the nanocomposite coatings increased by 119%, and the antibacterial rate against () and () increased by 32% and 58%, respectively, compared with the pure GE coatings. In addition, the nanocomposite coatings can be repaired within 24 h after being scratched at room temperature. Finally, GA coated with chitosan nanoparticles can significantly delay the escape of GA, and the retardation of gallic acid release exceeded 89% in simulated solutions after 24 h immersion, extending the service life of the nanocomposite coatings.

References
1.
Lai J, Li L, Wang D, Zhang M, Mo S, Wang X . A rigid and healable polymer cross-linked by weak but abundant Zn(II)-carboxylate interactions. Nat Commun. 2018; 9(1):2725. PMC: 6045665. DOI: 10.1038/s41467-018-05285-3. View

2.
Romruen O, Kaewprachu P, Karbowiak T, Rawdkuen S . Development of Intelligent Gelatin Films Incorporated with Sappan ( L.) Heartwood Extract. Polymers (Basel). 2022; 14(12). PMC: 9228210. DOI: 10.3390/polym14122487. View

3.
Pan J, Ai X, Ma C, Zhang G . Degradable Vinyl Polymers for Combating Marine Biofouling. Acc Chem Res. 2022; 55(11):1586-1598. DOI: 10.1021/acs.accounts.2c00187. View

4.
Gasti T, Dixit S, Hiremani V, Chougale R, Masti S, Vootla S . Chitosan/pullulan based films incorporated with clove essential oil loaded chitosan-ZnO hybrid nanoparticles for active food packaging. Carbohydr Polym. 2021; 277:118866. DOI: 10.1016/j.carbpol.2021.118866. View

5.
Zhuk I, Jariwala F, Attygalle A, Wu Y, Libera M, Sukhishvili S . Self-defensive layer-by-layer films with bacteria-triggered antibiotic release. ACS Nano. 2014; 8(8):7733-45. DOI: 10.1021/nn500674g. View