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Preparation and characterization of catechol-grafted chitosan/gelatin/modified chitosan-AgNP blend films.
Carbohydr Polym. 2020 Nov 01; 247:116643.CP

Abstract

Due to the increasing environmental pollution caused by plastic materials, the chitosan (CS)-based biodegradable films is gradually popular. However, poor water solubility of CS, poor mechanical and water barrier properties of CS film limit its application in food packaging. In this study, new bio-based films containing catechol-modified chitosan (CSCT), catechol-modified chitosan-silver nanoparticles (CSCT-Ag NPs) and gelatin (G) were prepared to overcome the drawbacks of pure CS films. Chitosan was modified by catechol to improve the water solubility. Ag NPs were prepared by in-situ reduction using modified chitosan, which yielded particles with an average size of approximately 8 nm. An antibacterial film composed of the modified chitosan as a matrix incorporated with Ag NPs and G was prepared by the solution casting method. The addition of Ag NPs and G improved the tensile strength and water vapor resistance. The prepared membrane exhibited unique antibacterial activities against S. aureus and E. coli. In conclusion, the fabricated bio-nanocomposite indicated considerable potential for food packaging.

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Authors+Show Affiliations

Cao W
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China.
Yan J
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China.
Liu C
First Hospital of Shanxi Medical University, Taiyuan 030001, PR China.
Zhang J
First Hospital of Shanxi Medical University, Taiyuan 030001, PR China.
Wang H
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.
Gao X
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China.
Yan H
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China.
Niu B
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China; School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, PR China. Electronic address: baolongniutyut@hotmail.com.
Li W
College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China; Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology, Ministry of Education, Taiyuan 030024, PR China. Electronic address: wenfenglityut@live.com.

MeSH

Anti-Bacterial AgentsCatecholsChitosanEscherichia coliGelatinMetal NanoparticlesNanocompositesSilverStaphylococcus aureus

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32829790

Citation

Cao, Wenling, et al. "Preparation and Characterization of Catechol-grafted Chitosan/gelatin/modified chitosan-AgNP Blend Films." Carbohydrate Polymers, vol. 247, 2020, p. 116643.
Cao W, Yan J, Liu C, et al. Preparation and characterization of catechol-grafted chitosan/gelatin/modified chitosan-AgNP blend films. Carbohydr Polym. 2020;247:116643.
Cao, W., Yan, J., Liu, C., Zhang, J., Wang, H., Gao, X., Yan, H., Niu, B., & Li, W. (2020). Preparation and characterization of catechol-grafted chitosan/gelatin/modified chitosan-AgNP blend films. Carbohydrate Polymers, 247, 116643. https://doi.org/10.1016/j.carbpol.2020.116643
Cao W, et al. Preparation and Characterization of Catechol-grafted Chitosan/gelatin/modified chitosan-AgNP Blend Films. Carbohydr Polym. 2020 Nov 1;247:116643. PubMed PMID: 32829790.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Preparation and characterization of catechol-grafted chitosan/gelatin/modified chitosan-AgNP blend films. AU - Cao,Wenling, AU - Yan,Jianghao, AU - Liu,Chun, AU - Zhang,Jin, AU - Wang,Huifang, AU - Gao,Xianghua, AU - Yan,Hong, AU - Niu,Baolong, AU - Li,Wenfeng, Y1 - 2020/06/16/ PY - 2019/10/09/received PY - 2020/04/30/revised PY - 2020/06/11/accepted PY - 2020/8/25/entrez PY - 2020/8/25/pubmed PY - 2021/4/7/medline KW - (PubChem CID: 289) KW - Antibacterial film KW - Catechol(CT) KW - Chitosan(CS) (PubChem 71853) KW - Gelatin KW - Gelatin (G)(PubChem CID: 753) KW - Glycerol (PubChem CID: 753) KW - Hydrochloric acid (PubChem CID: 313) KW - Modified chitosan KW - Nano silver KW - Paraformaldehyde (PubChem CID: 712) KW - Silver nitrate (PubChem CID: 24470) SP - 116643 EP - 116643 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 247 N2 - Due to the increasing environmental pollution caused by plastic materials, the chitosan (CS)-based biodegradable films is gradually popular. However, poor water solubility of CS, poor mechanical and water barrier properties of CS film limit its application in food packaging. In this study, new bio-based films containing catechol-modified chitosan (CSCT), catechol-modified chitosan-silver nanoparticles (CSCT-Ag NPs) and gelatin (G) were prepared to overcome the drawbacks of pure CS films. Chitosan was modified by catechol to improve the water solubility. Ag NPs were prepared by in-situ reduction using modified chitosan, which yielded particles with an average size of approximately 8 nm. An antibacterial film composed of the modified chitosan as a matrix incorporated with Ag NPs and G was prepared by the solution casting method. The addition of Ag NPs and G improved the tensile strength and water vapor resistance. The prepared membrane exhibited unique antibacterial activities against S. aureus and E. coli. In conclusion, the fabricated bio-nanocomposite indicated considerable potential for food packaging. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/32829790/Preparation_and_characterization_of_catechol_grafted_chitosan/gelatin/modified_chitosan_AgNP_blend_films_ DB - PRIME DP - Unbound Medicine ER -