High-Performance, Degradable, Self-Healing Bio-Based Nanocomposite Coatings with Antibacterial and Antioxidant Properties
TLDR
In this paper , 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.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 Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) 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.read more
References
More filters
Journal ArticleDOI
Colorless, Transparent, Robust, and Fast Scratch-Self-Healing Elastomers via a Phase-Locked Dynamic Bonds Design.
TL;DR: The rapid scratch healing and complete transparency recovery of the elastomers provide new avenues in the highly transparent surface or protective films which finds potential applications for precision optical lenses, flexible display screens, and automobile or aircraft lighting finishes.
Journal ArticleDOI
Tough Supramolecular Polymer Networks with Extreme Stretchability and Fast Room‐Temperature Self‐Healing
TL;DR: This work describes the construction of supramolecular polymer networks through an in situ copolymerization of acrylamide and functional monomers, which are dynamically complexed with the host molecule cucurbit[8]uril (CB[8]).
Journal ArticleDOI
Preparation and properties of dialdehyde carboxymethyl cellulose crosslinked gelatin edible films
TL;DR: In this article, the mechanical properties, thermal stability, light barrier properties, swelling behavior as well as water vapor permeability of gelatin-carboxymethyl cellulose (DCMC) films are investigated.
Journal ArticleDOI
Self-defensive layer-by-layer films with bacteria-triggered antibiotic release.
Iryna Zhuk,Freneil B. Jariwala,Athula B. Attygalle,Yong Wu,Matthew Libera,Svetlana A. Sukhishvili +5 more
TL;DR: These coatings present a promising way to incorporate antibacterial agents at surfaces to prevent bacterial colonization of implanted biomedical devices and contribute to the development of antibiotic resistance.
Journal ArticleDOI
A rigid and healable polymer cross-linked by weak but abundant Zn(II)-carboxylate interactions
Jian-Cheng Lai,Lan Li,Da-Peng Wang,Min-Hao Zhang,Sheng-Ran Mo,Xue Wang,Ke-Yu Zeng,Cheng-Hui Li,Qing Jiang,Xiao-Zeng You,Jing-Lin Zuo +10 more
TL;DR: A rigid and healable material is demonstrated by using weak but abundant coordination bonds to crosslink a PDMS polymer that exhibits fast thermal-healing properties and is also advantageous for various applications such as in orthopedic immobilization, conductive composites/adhesives, and 3D printing.
Related Papers (5)
Physical properties and degradability of PHB/chitosan blend films
The preparation of chitosan-Ag nanocomposite for food packaging
Hamid Reza Ghorbani,sh fahimi +1 more