High-barrier and antibacterial films based on PET/SiOx for food packaging applications

Li, Yana; Ren, Jizhou; Zhang, Guoquan; Li, Xuezhogn

doi:10.1590/fst.37720

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…An electronic universal testing machine (CMT4503, New Sans instrument, Shenzhen, China) was used to determine the mechanical properties of the nano-ZnO/HDPE composite films at a crosshead speed of 200 mm/min according to the standard of GB/T 16421-1996 and QB/T 1130-91. Six replicates were measured for each sample ( Li et al, 2020;Li et al 2021).…”

Section: Characterization Of Nano-zno/hdpe Composite Filmsmentioning

confidence: 99%

Effect of antibacterial nanocomposite film on the preservation of cheese

Chen

2022

Food Sci. Technol

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High density polyethylene (HDPE) and nano-ZnO were used to prepare nano-ZnO/HDPE composite film with a nano-ZnO content of 0.5wt%. The morphology, mechanical, barrier and antibacterial properties, as well as the preservation to cheese of the films were studied. The results showed that the ZnO nanoparticles had a good dispersion in HDPE matrix so that the improvement of the mechanical, barrier and antibacterial performances of the film was achieved after the addition of nano-ZnO to HDPE. In comparison to cheese packaged in HDPE bags, it was found that the sensory score of the cheese in nano-ZnO/HDPE bags increased from 66.6 to 73.7 and the pH of cheese was closer to the standard sample at storage time of 7d. Furthermore, nano-ZnO/HDPE inhibited effectively the increase of the total bacterial count (TBC) on cheese contrast of HDPE. That indicates the prepared nano-ZnO/HDPE is potential in cheese packaging to extend the shelf life.

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Section: Characterization Of Nano-zno/hdpe Composite Filmsmentioning

confidence: 99%

Effect of antibacterial nanocomposite film on the preservation of cheese

Chen

2022

Food Sci. Technol

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“…First, the film sample was cracked with liquid nitrogen and cut into 5mm × 3mm pieces. It was adhered to a conductive adhesivecovered sample table, sprayed in a sputtering ion instrument for 30 seconds at a current of 20 mA, and then examined using scanning electron microscopy (Li et al, 2021;Dashipour et al, 2015;Koc et al, 2020). The acceleration voltage is 5.0 kV.…”

Section: Scanning Electron Microscopy (Sem)mentioning

confidence: 99%

Preparation and properties of antibacterial sodium dehydroacetate/modified film

Fan

Lü

et al. 2022

Food Sci. Technol

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Antibacterial polyethylene (PE) packaging films were prepared by combining granulation and casting with antibacterial agents sodium dehydroacetate (SD) and potassium sorbate (PS). The scanning electron microscopy (SEM) was used to characterize the structure of the films, and the effects of various additives on their physical, optical, microstructure, thermal stability, and antibacterial properties were investigated. The results show that when the SD: PS ratio is 2:1, the antibacterial film has higher tensile strength (14.71 MPa) than pure PE film. When the SD: PS ratio is 3:1, the water vapor transmission coefficient is the lowest, and The increase of SD concentration can result in good antibacterial activity against various microbes. The film has excellent physical and antibacterial properties, making it ideal for food packaging.

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“…Lithography is another technic to modify the surface topography to reduce the adhesion of germs. 11,12 Li et al 13 utilized coating and irradiation to compose PET/SiOx/chitosan and PET/-SiOx/chitosan-nano ZnO films. Either surface topography modification or coating greatly changes the original surface properties of PET.…”

Section: Introductionmentioning

confidence: 99%

Amino polysaccharide quaternary ammonium salt grafted to PET‐Cuff by ultraviolet irradiation for improving the sustained antibacterial property of semi‐permanent central vein tunneled cuffed catheter

Liu,

Li,

Shi

et al. 2024

Polymers for Advanced Techs

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In hemodialysis, tunneled cuffed catheter (TCC) is commonly used as a medical device for establishing vascular access. To address the current problem that the skin tunnel of TCC is susceptible to bacterial infection, this work proposes quaternized modification of the cuff of TCC to comprehensively enhance the long‐lasting antimicrobial performance of TCC. The morphology of the cuff basically resembles the polyethylene terephthalate (PET). Via ultraviolet (UV) irradiation, acrylic acid (AA) was grafted onto PET. Then, amino polysaccharide quaternary ammonium salt (As) replaced H+ of the carboxyl groups on the macromolecular chain of PET through solution post‐treatment method. Through the single factor experiment, the degree of grafting reached 159.8% under the optimum preparation conditions (AA concentration of 25 vol%, H+ concentration of 0.2 mol/L, photosensitizer capacity of 15 wt%, and photo‐irradiation time of 30 min). By the above method, we successfully synthesized a highly hydrophilic, well biocompatible, and highly efficient antimicrobial PET‐g‐PAA@As. Animal experiments and histological analyses showed that PET‐g‐PAA@As was superior to PET control and blank control groups in controlling infection and promoting wound healing. This catheter material with excellent biocompatibility, sustained antimicrobial activity, and wound healing ability will have great potential for use in hemodialysis.

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High-barrier and antibacterial films based on PET/SiOx for food packaging applications

Cited by 6 publications

References 16 publications

Effect of antibacterial nanocomposite film on the preservation of cheese

Effect of antibacterial nanocomposite film on the preservation of cheese

Preparation and properties of antibacterial sodium dehydroacetate/modified film

Amino polysaccharide quaternary ammonium salt grafted to PET‐Cuff by ultraviolet irradiation for improving the sustained antibacterial property of semi‐permanent central vein tunneled cuffed catheter

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