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Zhang J, Zhang J, Wang B, Li W, Wang H, Guo R, Yu W, Xie L, Zheng Q. Modified magnesium oxide/silver nanoparticles reinforced poly (butylene succinate-co-terephthalate) composite biofilms for food packaging application. Food Chem 2024; 435:137492. [PMID: 37774609 DOI: 10.1016/j.foodchem.2023.137492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 10/01/2023]
Abstract
MgO/Ag nanoparticles (NPs) were surface-modified with titanate coupling agent titaniumtriisostearoylisopropoxide (NDZ-130). A new antibacterial biofilm for food packaging was synthesized by combining the modified MgO/Ag NPs with poly (butylene succinate-co-terephthalate) (PBST). The modification improved the compatibility between the MgO/Ag NPs and the PBST matrix. The effects of the modified MgO/Ag NPs on biofilm mechanical, barrier, thermal, antibacterial and food preservation properties were evaluated. Compared with the PBST/MgO/Ag composite film, the modified PBST/MgO/Ag composite film showed an increase in tensile strength (TS) of 8.71% and elongation at break (EB) of 16.66%, additionally decreasing water vapor permeability (WVP) by 42.86%. The composite film also exhibited over 95% inhibition of Staphylococcus aureus and Escherichia coli. The modified PBST/MgO/Ag composite film avoided microbial contamination and preserved cherry tomatoes while maintaining moisture and firmness for six days. All results indicated that the prepared biofilms have a high potential for use as food packaging films.
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Affiliation(s)
- Jianing Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, China
| | - Jie Zhang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, China.
| | - Boyang Wang
- College of Medicine and Biological Information Engineering, North Eastern University, Shenyang 110819, China
| | - Wei Li
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China.
| | - Huifang Wang
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, China
| | - Ruijie Guo
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China; Key Laboratory of Interface Science and Engineering in Advanced Materials (Taiyuan University of Technology), Ministry of Education, Taiyuan 030024, China
| | - Wenwen Yu
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Lan Xie
- State Key Laboratory of Public Big Data, Guizhou University, Guiyang 550025, China
| | - Qiang Zheng
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
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Abstract
Silane is a dominant coupler that is widely used in dentistry to promote adhesion among the components of dental composites. Silica-based fillers can be easily silanized because of their similarly ordered structure. However, silane is hydrolytically degraded in the aqueous oral environment and inefficiently bonds to non-silica fillers. Thus, the development of hydrolytically stable dental composites is an important objective in the research on dental materials. Titanate coupling agents (TCAs) exhibit satisfactory interfacial bonding, enhanced homogeneous filler dispersion, and improved mechanical properties of the composites. Titanates also provide superior hydrolytic stability in wet environments, which should be considered in fabricating dental composites. The addition of a small amount of titanates can improve the resistance of the composites to moisture. This paper reviews the effects of the instability of silanes in moisture on the performance of dental composites and presents TCAs as alternative couplers to silanes for fabricating dental composites.
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Affiliation(s)
- Nidal Wanis Elshereksi
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia.,Department of Dental Technology, College of Medical Technology
| | - Mariyam Ghazali
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia
| | - Andanastuti Muchtar
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia
| | - Che Husna Azhari
- Department of Mechanical & Materials Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia
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