Novel Antibacterial Food Packaging Based on Chitosan Loaded ZnO Nano Particles Prepared by Green Synthesis from Nettle Leaf Extract

Oghani, Fatemeh Zahiri; Tahvildari, Kambiz; Nozari, Maryam

doi:10.1007/s10904-020-01621-7

Cited by 36 publications

(10 citation statements)

References 42 publications

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“…The peaks related to ZnO NMs appeared at 2θ = 31.79° (100), 34.47° (002), 36.26° (101), 47.67° (102), 56.66° (110), 62.94° (103), 68.01° (112), 69.19° (201) and 77.04° (202), respectively. These peaks were in a good agreement with the diffraction patterns of JCPDS le no: 80 − 0075 corresponding to the hexagonal structure of ZnO NMs [12,41]. The XRD patterns of ZnO@PCD NPs showed no difference in comparison with the patterns of the ZnO NMs showing that structure of ZnO are retained in ZnO@PCD.…”

Section: Xrd Analysissupporting

confidence: 82%

“…On the other hand, due to the good bioavailability and relatively high stability, the use of metallic nanomaterials (NMs) has received much attention [11,12]. Some metal oxides (MeOs) such as silver oxide (AgO), titanium oxide (TiO 2 ), iron oxide (Fe 3 O 4 ), copper oxide (CuO) and zinc oxide (ZnO) have been gained interest as a nanocarrier for CUR immobilization to improve its bioe cacy [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial performance of curcumin loaded polycyclodextrin-coated zinc oxide nanomaterials in photodynamic therapy against Enterococcus faecalis

Gholibegloo¹,

Akbari²,

Torshabi³

et al. 2022

Preprint

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Antimicrobial photodynamic therapy (aPDT) is a high potential strategy for the treatment of microbial infections in endodontics. In this study, a novel antibacterial agent was designed and prepared based on the two morphologies of zinc oxide nanomaterials (NMs) as ZnO nanosphere (ZnOS) and ZnO nanorod (ZnOR). Their surfaces were coated with carnosine (CAR)-functionalized polycyclodextrin (ZnO@PCD-CAR) for higher payload of curcumin (CUR) as a photosensitizer (PS). This system was characterized using FT-IR, XRD, TGA, FE-SEM, zeta potential analysis and UV-visible spectroscopy. The colony forming unit (CFU) assay was carried out to evaluate the antimicrobial properties of the nanoformulations againts Enterococcus faecalis (E. Faecalis). The target products (ZnOS@PCD-CAR/CUR and ZnOR@PCD-CAR/CUR) exhibited a light stability approximately by 2.9 and 2.8 fold, respectively, higher than the free CUR. Compared to the bare CUR, these materials indicated more stability againts pH variations. ZnOS@PCD-CAR/CUR and ZnOR@PCD-CAR/CUR NMs-mediated aPDT, significantly declined the count of E. Faecalis strains about 1.5 and 2 log (P < 0.05). Due to the high CUR loading, proper stability and significant inhibitory effects against E. Faecalis, ZnO@PCD-CAR/CUR could be considered as a promising antimicrobial agent in aPDT for efficient treatment of root canal infections.

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Section: Xrd Analysissupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Antibacterial performance of curcumin loaded polycyclodextrin-coated zinc oxide nanomaterials in photodynamic therapy against Enterococcus faecalis

Gholibegloo¹,

Akbari²,

Torshabi³

et al. 2022

Preprint

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“…The number of viable cells growing on the surface of the obtained composite corresponded to the values during growth on the surface of the TiNbTaZr medical alloy. The possibility of using polymer–ZnO-NPs composites as packaging [ 58 , 59 , 60 ], dressings [ 61 , 62 ], and wound-healing agents [ 63 ], as well as for the decomposition of wastewater [ 15 ], has been reported. An important property of PLGA as a matrix for the manufacture of composite materials is controlled biodegradability within the body [ 64 , 65 ].…”

Section: Resultsmentioning

confidence: 99%

Bacteriostatic and Cytotoxic Properties of Composite Material Based on ZnO Nanoparticles in PLGA Obtained by Low Temperature Method

et al. 2021

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A low-temperature technology was developed for producing a nanocomposite based on poly (lactic-co-glycolic acid) and zinc oxide nanoparticles (ZnO-NPs), synthesized by laser ablation. Nanocomposites were created containing 0.001, 0.01, and 0.1% of zinc oxide nanoparticles with rod-like morphology and a size of 40–70 nm. The surface of the films from the obtained nanomaterial was uniform, without significant defects. Clustering of ZnO-NPs in the PLGA matrix was noted, which increased with an increase in the concentration of the dopant in the polymer. The resulting nanomaterial was capable of generating reactive oxygen species (ROS), such as hydrogen peroxide and hydroxyl radicals. The rate of ROS generation increased with an increase in the concentration of the dopant. It was shown that the synthesized nanocomposite promotes the formation of long-lived reactive protein species, and is also the reason for the appearance of a key biomarker of oxidative stress, 8-oxoguanine, in DNA. The intensity of the process increased with an increase in the concentration of nanoparticles in the matrix. It was found that the nanocomposite exhibits significant bacteriostatic properties, the severity of which depends on the concentration of nanoparticles. In particular, on the surface of the PLGA–ZnO-NPs composite film containing 0.001% nanoparticles, the number of bacterial cells was 50% lower than that of pure PLGA. The surface of the composite is non-toxic to eukaryotic cells and does not interfere with their adhesion, growth, and division. Due to its low cytotoxicity and bacteriostatic properties, this nanocomposite can be used as coatings for packaging in the food industry, additives for textiles, and also as a material for biomedicine.

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“…ZnO NPs can be easily blended in the film matrix or coated on the surface during film processing. Chitosan, carboxymethyl cellulose, poly(vinyl chloride), polyurethane, and poly(lactic acid) films with ZnO NPs embedded in the matrix all showed enhanced antibacterial activity against either Gram-negative or Gram-positive bacterial strains [106][107][108][109]. Ag NPs have better antibacterial efficiency against a broad spectrum of microorganisms [110,111].…”

Section: Biopolymers As Carriers Of Antioxidant Agentsmentioning

confidence: 99%

Active Food Packaging Made of Biopolymer-Based Composites

Tang

et al. 2022

Materials

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Food packaging plays a vital role in protecting food products from environmental damage and preventing contamination from microorganisms. Conventional food packaging made of plastics produced from unrenewable fossil resources is hard to degrade and poses a negative impact on environmental sustainability. Natural biopolymers are attracting interest for reducing environmental problems to achieve a sustainable society, because of their abundance, biocompatibility, biodegradability, chemical stability, and non-toxicity. Active packaging systems composed of these biopolymers and biopolymer-based composites go beyond simply acting as a barrier to maintain food quality. This review provides a comprehensive overview of natural biopolymer materials used as matrices for food packaging. The antioxidant, water barrier, and oxygen barrier properties of these composites are compared and discussed. Furthermore, biopolymer-based composites integrated with antimicrobial agents—such as inorganic nanostructures and natural products—are reviewed, and the related mechanisms are discussed in terms of antimicrobial function. In summary, composites used for active food packaging systems can inhibit microbial growth and maintain food quality.

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Novel Antibacterial Food Packaging Based on Chitosan Loaded ZnO Nano Particles Prepared by Green Synthesis from Nettle Leaf Extract

Cited by 36 publications

References 42 publications

Antibacterial performance of curcumin loaded polycyclodextrin-coated zinc oxide nanomaterials in photodynamic therapy against Enterococcus faecalis

Antibacterial performance of curcumin loaded polycyclodextrin-coated zinc oxide nanomaterials in photodynamic therapy against Enterococcus faecalis

Bacteriostatic and Cytotoxic Properties of Composite Material Based on ZnO Nanoparticles in PLGA Obtained by Low Temperature Method

Active Food Packaging Made of Biopolymer-Based Composites

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