Chitosan-metal and metal oxide nanocomposites for active and intelligent food packaging; a comprehensive review of emerging trends and associated challenges

Carbohydrate Polymers, Год журнала: 2025, Номер 357, С. 123459 - 123459

Опубликована: Март 3, 2025

In recent years, significant advancements in biopolymer-based packaging have emerged as a response to the environmental challenges posed by traditional petroleum-based materials. The drive for sustainable, renewable, and degradable alternatives fossil-based components industry has led an increased focus on chitosan, second most abundant biopolymer after cellulose. Chitosan offers intrinsic properties such biodegradability, biocompatibility, antimicrobial activity, excellent barrier film-forming capabilities, positioning it ideal candidate food applications. However, limitations including inferior mechanical, thermal, properties, brittleness compared conventional plastics limiting its widespread adoption industry. been extensively utilized various forms, particularly nanocomposites incorporating metal nanoparticles, leading chitosan-based nanocomposite films/coatings that synergistically combine advantageous of both chitosan nanoparticles. Through in-depth analysis current research (primarily last 5 years), this review delves into physicochemical, sensing, innovative material. This will provide insights potential toxicity impact nanoparticle migration, well prospects associated with chitosan-metal/metal oxide films development sustainable solutions.

Язык: Английский

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ι-Carrageenan Manganese Oxide Bionanocomposites as a Promising Solution to Agricultural Challenges

Materials, Год журнала: 2025, Номер 18(3), С. 495 - 495

Опубликована: Янв. 22, 2025

Agriculture faces numerous challenges: infectious diseases through phytopathogens and soil nutrient deficiencies hinder plant growth, reducing crop yields. Biopolymer nanocomposites offer promising solutions to these challenges. In this work, we synthesize characterize novel bionanocomposites (ι-CG-Mn) of manganese (hydr)oxide nanoparticles (approx. 3 11 nm) embedded in the matrix natural polysaccharide ι-carrageenan (ι-CG). Using spectroscopic methods verify presence polymer while leaving structural characteristics unaffected. Elemental analysis determines mass content metal ions ι-CG-Mn be approx. 1 wt%. Electron microscopy techniques show supramolecular organization homogeneous nanoparticle distribution matrix, thermal reveals that bionanocomposite maintains high stability. Moreover, co-incubation phytopathogen Clavibacter sepedonicus with inhibits pathogen growth by 67% compared control. Our demonstrate (1) strong bactericidal activity (2) potential as microfertilizers stimulate agricultural dosage ions. These properties arise from bioactivity widely available, naturally sulfated biopolymer combined antimicrobial effects nanoparticles, which together enhance efficacy biocomposite. The non-toxic, biocompatible, biodegradable nature satisfies environmental demands for future biotechnological technologies.

Язык: Английский

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DFT, molecular docking, antimicrobial activity, dye degradation, and oxygen evolution reaction of functionalized chitosan integrated eudragit-stannous selenide nanostructures

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 105907 - 105907

Опубликована: Янв. 1, 2025

Язык: Английский

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Exploring the CD3/CD56/TNF-α/Caspase3 pathway in pyrethroid-induced immune dysregulation: curcumin-loaded chitosan nanoparticle intervention

Frontiers in Pharmacology, Год журнала: 2025, Номер 16

Опубликована: Фев. 6, 2025

Conflict reports exist on the impact of pyrethroid insecticides immune function and probable underlying mechanisms. This study evaluated effect an extensively used insecticide, fenpropathrin (FTN) (15 mg/kg b.wt), innate humoral components, blood cells, splenic oxidative status, mRNA expression CD3, CD20, CD56, CD8, CD4, IL-6, TNF-α, Caspase3 in a 60-day trial rats. Besides, possible defensive curcumin-loaded chitosan nanoparticle (CML-CNP) (50 b.wt) was evaluated. FTN exposure resulted hypochromic normocytic anemia, thrombocytosis, leukocytosis, lymphopenia. significant reduction IgG, not IgM, but increased C3 serum levels evident FTN-exposed Moreover, their tissues displayed substantial increase ROS, MDA, IL-1β content, altered histology, reduced GPX, GSH, GSH/GSSG. Furthermore, upregulation downregulation CD8 detected significantly upregulated Caspase-3 its immunohistochemical expression, along with elevated TNF-α immunoexpression. However, alterations function, antioxidant cell populations, immune-related gene were notably restored + CML-CNP-treated group. The findings this highlighted immunosuppressive effects suggested involvement many CD markers as potential mechanism. Additionally, results demonstrated effectiveness CML-CNP mitigating pollutant-induced disorders.

Язык: Английский

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Green Biosynthesis of Nanoparticles Using Plant Extracts: Mechanisms, Advances, Challenges, and Applications

BioNanoScience, Год журнала: 2025, Номер 15(2)

Опубликована: Март 13, 2025

Язык: Английский

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Water-soluble ZnPc(COOH)₄/Ch/MgO self-assembled systems

RSC Advances, Год журнала: 2025, Номер 15(14), С. 11115 - 11120

Опубликована: Янв. 1, 2025

We report a water soluble MgO/Ch/ZnPc(COOH) 4 self-assembled room-temperature phosphorescent material with unique performance, such as long lifetime of 5.01 μs, large Stokes shift 105 nm and phosphorescence quantum yield 10.63%.

Язык: Английский

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