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Papers
61,005 resultsShowing papers similar to Synthesis, Characterization, and Evaluation of Silver Nanoparticle-Loaded Carboxymethyl Chitosan with Sulfobetaine Methacrylate Hydrogel Nanocomposites for Biomedical Applications
ClearPhysicochemical and antibacterial properties of Graphene Oxide-Silver/Graphene Oxide/Chitosan composite wound dressing
Researchers developed a graphene oxide-silver/graphene oxide/chitosan composite wound dressing and found that incorporating 4 wt% graphene oxide improved wet-state tensile strength by 214%, while the composite demonstrated non-cytotoxic properties and antibacterial activity, making it a promising candidate for clinical wound care applications.
Antimicrobial Effect of Chitosan Films on Food Spoilage Bacteria
Researchers evaluated the antibacterial activity of chitosan films combined with metal oxides and graphene oxide derivatives against Campylobacter jejuni and Listeria monocytogenes. The results support chitosan-based composite films as promising biodegradable alternatives to synthetic plastic food packaging with inherent antimicrobial properties.
Engineering chitosan into fully bio-sourced, water-soluble and enhanced antibacterial poly(aprotic/protic ionic liquid)s packaging membrane
Researchers designed a water-soluble, antibacterial chitosan-based packaging film using fully bio-sourced materials, addressing growing concerns about microplastic pollution from conventional packaging. The resulting membrane showed enhanced antibacterial performance while remaining environmentally benign.
D-Cysteine Functionalized Superhydrophobic Nanocomposite Coating with Multiple-Action Antibacterial Property and Enhanced Mechanical Durability
A durable superhydrophobic antibacterial coating was developed using bisphenol A diglycidyl ether, hydrophobic silica nanoparticles, and silver nanoparticles functionalized with D-cysteine. The coating resisted both bacterial adhesion and water wetting while maintaining mechanical durability. Such coatings have potential applications in marine infrastructure and medical devices where both water resistance and antibacterial properties are needed.
Biopolymeric Nanocomposites for Wastewater Remediation: An Overview on Recent Progress and Challenges
This review examines how nanocomposites made from natural biopolymers like chitosan can be used to filter pollutants including microplastics out of wastewater. These biodegradable materials offer a more sustainable alternative to traditional water treatment methods, which matters for human health because cleaner wastewater means fewer microplastics reaching drinking water sources.
Nanoreinforcement strategies for enhancing biodegradable composites in biochemical applications within agriwaste valorisation
Researchers used leftover plant material from rosemary distillation to synthesize silver nanoparticles with strong antibacterial and antioxidant properties, exploring how agricultural byproducts can produce eco-friendly nanomaterials with potential medical applications including treatment of inflammatory conditions.
Chitosan as a sustainable alternative for fresh food packaging: Structural insights, modification strategies, and innovations for commercial viability
Researchers reviewed how chitosan — a natural biopolymer derived from crustacean shells — can serve as a biodegradable alternative to single-use plastic food packaging, detailing chemical modification strategies, nanocomposite reinforcement approaches, and recent advances in antimicrobial and antioxidant performance that improve its commercial viability.
Functional Nanocellulose, Alginate and Chitosan Nanocomposites Designed as Active Film Packaging Materials
Researchers formulated and characterized 25 nanocellulose-based composite films using cellulose nanocrystals, nanofibrils, and bacterial nanocellulose combined with chitosan and alginate, finding that combinations with chitosan generally provided the best mechanical and barrier properties for potential food packaging use.
Developments and application of chitosan-based adsorbents for wastewater treatments
This review examines the use of chitosan, a natural material derived from crustacean shells, as an adsorbent for removing pollutants from wastewater. Researchers found that chitosan-based composites, especially those enhanced with nanoparticles, are effective at removing metals, pharmaceuticals, pesticides, and microplastics from water. The material's low cost, biodegradability, and versatility make it a promising tool for addressing water contamination worldwide.
New Structural Nanocomposite Based on PLGA and Al2O3 NPs as a Balance between Antibacterial Activity and Biocompatibility with Eukaryotic Cells
Researchers developed a PLGA polymer nanocomposite incorporating aluminum oxide nanoparticles and found it exhibited both antibacterial activity and biocompatibility with eukaryotic cells. The material maintained structural integrity while providing antimicrobial protection, positioning it as a candidate for eco-friendly biodegradable packaging with antimicrobial function.
Chitin and Chitosan in Wastewater Treatment
This review examines how chitosan — a biodegradable material derived from crustacean shells — and its modified nanocomposites can be used to remove microplastics, heavy metals, and pesticides from wastewater. Chitosan-based materials show strong promise as low-cost, eco-friendly water treatment additives, though challenges around mechanical strength and acid stability still need to be overcome before widespread deployment.
Construction of nano slow-release systems for antibacterial active substances and its applications: A comprehensive review
This review examines nano-carrier systems designed to deliver antibacterial active substances for applications in food packaging, preservation, and other fields. Researchers found that combining natural antimicrobial compounds with nano-carrier materials can substantially improve their stability and effectiveness while reducing microbial resistance, offering promising alternatives to conventional plastic-based approaches.
Evaluation of the Antimicrobial Activity of Chitosan Nanoparticles against Listeria monocytogenes
Not relevant to microplastics — this is a microbiology study testing the antimicrobial effectiveness of chitosan nanoparticles from different sources against the foodborne pathogen Listeria monocytogenes, finding that nanoparticle size — not just molecular weight or deacetylation degree — drives efficacy.
Interaction of chitosan with nanoplastic in water: The effect of environmental conditions, particle properties, and potential for in situ remediation
Researchers tested chitosan — a natural polymer derived from shellfish — as a tool to aggregate and remove nanoplastic particles from water, finding it caused clumping at low doses but that high pH, dissolved organic matter, and surface chemistry of the plastics all affected its performance. The results suggest chitosan-based treatment has real potential for water remediation but requires careful tuning of environmental conditions.
Chitosan-based Biogenic Nanoparticles for Wastewater Remediation: Synthesis, Characterization, and Applications - A Review
This review synthesizes research on chitosan-based biogenic nanoparticles for wastewater remediation, covering synthesis routes, physicochemical characterization, and applications leveraging chitosan's biodegradability and unique surface chemistry for removal of pollutants from water.
Chitosan/Alginate-Based Nanoparticles for Antibacterial Agents Delivery
This review examines how nanoparticles made from chitosan and alginate (natural sugar-based materials) can deliver antibacterial drugs more effectively by improving how the drugs dissolve and how long they stay active. While not directly about microplastics, these biodegradable nanoparticle systems could offer alternatives to plastic-based drug delivery methods, reducing reliance on synthetic plastics in medicine.
Application of chitosan-carbon nanotube hydrogel beads composite in the removal of antibiotic compounds and perfluoroalkyl substances from aqueous solution
This study developed a chitosan-carbon nanotube hydrogel bead composite for removing antibiotics and perfluoroalkyl substances (PFAS) from water, addressing the inability of conventional wastewater treatment plants to fully eliminate these emerging contaminants.
Effect of Nano-Silica and Sorbitol on the Properties of Chitosan-Based Composite Films
Chitosan composite films incorporating nano-silica and sorbitol were prepared and characterized, finding that the additives improved film flexibility and mechanical properties while maintaining biodegradability, with potential applications in food packaging.
Environmental implications of Chitosan nanostructures
This review examines the environmental implications of chitosan nanostructures, focusing on the biopolymer's chemical and mechanical modification capabilities that enable its use in advanced membrane adsorbent applications. Researchers found that chitosan's unique properties make it a promising sustainable alternative material for environmental remediation, particularly given its biodegradable nature compared to synthetic polymer-based adsorbents.
Silver Bionanocomposites as Active Food Packaging: Recent Advances & Future Trends Tackling the Food Waste Crisis
This review examines how silver bionanocomposites embedded in biodegradable packaging materials can extend food shelf life by providing antimicrobial protection. Researchers found that these active packaging systems show promise for reducing both food waste and reliance on conventional plastic packaging. The study discusses recent advances in green synthesis methods that make silver nanoparticle production more sustainable and cost-effective.
Chitosan Biopolymer and Its Nanocomposites: Emerging Material as Adsorbent in Wastewater Treatment
This review examines chitosan biopolymer and its nanocomposites as emerging adsorbent materials for wastewater treatment, highlighting their high adsorption capacity and surface charge for efficiently removing various pollutants from contaminated water.
Influence of the Nanoparticles Chitosan High Molecular on the Degradation of Nanofill and Nanohybrid Composite Resins inVarious pH Saliva
Researchers tested whether adding 0.1% high-molecular-weight chitosan nanoparticles to the surfaces of nanofill and nanohybrid composite resins affected their degradation under salivary pH conditions ranging from 3 to 10, finding that surface degradation still occurred across all pH levels despite chitosan addition, with nanohybrid resin showing relative surface stability only at neutral pH.
Chitosan with Natural Additives as a Potential Food Packaging
Researchers reviewed the potential of chitosan, a natural polymer derived from chitin, as a sustainable alternative to conventional plastic food packaging. Chitosan-based materials combined with natural additives show promising antimicrobial and biocompatible properties while being biodegradable. The study suggests these materials could help reduce plastic packaging waste and the associated microplastic pollution from food industry sources.
Effect of zinc oxide nanoparticle types on the structural, mechanical and antibacterial properties of carrageenan-based composite films
Researchers synthesized zinc oxide nanoparticles from three different zinc salts and incorporated them into carrageenan composite films, evaluating how synthesis precursor affects the structural, mechanical, and antibacterial properties of the resulting biopolymer composites. The study identified which ZnONP synthesis route produces nanoparticles with the most favorable properties for food packaging applications.