A unique morphological oil/polyvinylpyrrolidone/gold polymeric bionanocomposite film was synthesized using the oil dispersed in a polymeric polyvinylpyrrolidone (PVP) matrix and decorated with gold nanoparticles (AuNPs). The chemical and physical characteristics as well as the thermal stability of the synthesized bionanocomposite film were investigated using various spectroscopic and microscopic techniques. The microscopic analysis confirmed well dispersed AuNPs in the PVP- oil matrix with particle size of 100 nm. Immunomodulatory and antiprotozoal potentials of the suggested bionanocomposite film were evaluated for lipopolysaccharide-induced BV-2 microglia and against , promastigotes and epimastigotes, respectively. The results exerted outstanding reduction of inflammatory cytokines' (IL-6 and TNFα) secretions after pretreatment of bionanocomposite. The bionanocomposite exhibited large inhibitory effects on certain cell signaling components that are related to the activation of expression of proinflammatory cytokines. Additionally, AuNPs and bionanocomposite exhibited excellent growth inhibition of and promastigotes with IC (1.71 ± 1.49, 1.68 ± 0.75) and (1.12 ± 1.10, 1.42 ± 0.69), respectively. However, the nanomaterials showed moderate activity towards . All outcomes indicated promising immunomodulatory, antiprotozoal, and photocatalytic potentials for the synthesized oil/PVP/Au polymeric bionanocomposite.
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http://dx.doi.org/10.3390/polym13244321 | DOI Listing |
Compr Rev Food Sci Food Saf
January 2025
School of Food Science and Engineering, Hainan University, Haikou, China.
In recent years, biopolymer-based food packaging films have emerged as promising alternatives to petroleum-based plastic food packaging films. Various additives have been explored to enhance their properties, and one such group of additives is natural plant aldehydes. These aldehydes are commonly employed to improve the antibacterial and antioxidant properties of biopolymer-based food packaging films.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea. Electronic address:
Active packaging is essential for reducing food quality loss and ensuring consumer safety. Recently, carbon dots, synthesized from agricultural bio-wastes, have been used as active nanofillers. Mango peels, generally discarded as waste, can serve as potential precursor for synthesis of carbon dots.
View Article and Find Full Text PDFFood Res Int
January 2025
School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China. Electronic address:
Int J Biol Macromol
December 2024
Department of Food Science and Engineering, Faculty of Agriculture, Ferdowsi University of Mashhad, Iran.
In the current study, the sage seed gum/gelatin-TiO (SG/Ge-TiO) nanocomposite films were prepared. Their physical, mechanical, chemical, barrier, surface, structural, and microbial characteristics are determined as a function of different ratios of sage seed gum (SG) to gelatin (1 to 2, 2 to 1 and 1 to 1) and different concentrations of TiO nanoparticles (0, 2, 4 % based on biopolymer (w/v)). The results indicated increases in the tensile strength, elongation at break, thickness, brightness (L*), whiteness index (WI), and contact angle, as gelatin content and concentration of TiO nanoparticles increase.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
January 2025
Department of Food and Nutrition, BioNanocomposite Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, South Korea. Electronic address:
Citrus peel waste carbon dots based on nitrogen-doped (N-TanCD) were developed by a hydrothermal strategy to deliver active packaging fillers and characterized by transmission electron microscopy, photoluminescence, and Fourier transform infrared analyses. The addition of N-TanCD into chitosan-pululan (CS/Pul@N-TanCD) polymer blend amplified the tensile strength of the composite film by 22.8 %, whereas the antioxidant activities against DPPH and ABTS reached 62.
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