Antimicrobial Packaging for Medical Products

Active food packaging material that inhibits mold and bacteria growth on packaged foods. The packaging has a release layer containing antimicrobial agents dispersed in a biodegradable polymer that vaporizes into the food environment. This is coated with nanocellulose. The nanocellulose layer prevents the active agents from leaching out too quickly. It also has a structural layer made of biodegradable materials like PHA, cellulose, or starch. This provides mechanical strength for packaging. The nanocellulose coating allows controlled release of the antimicrobials into the headspace around the food. It also improves eco-sustainability compared to conventional plastic packaging.

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Composite material for fruit and vegetable packaging that extends shelf life by preventing spoilage while allowing breathability. The packaging has three layers: an outer nano-bacteria barrier layer, a middle core layer, and an inner breathable layer. The nano-bacteria barrier layer prevents bacterial growth, the core layer protects the produce, and the breathable layer allows gas exchange to prevent anaerobic spoilage.

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Sterilizing the interior of a package using iodine-based sterilizing substances applied to the top film. The method involves applying iodine-containing sterilant to one side of the top film, sealing the package, and activating the sterilant inside by steaming for a specific time. The iodine-containing substance kills bacteria and viruses when activated. This allows sterilization of the package interior using a simple, low-cost process that can be done in-house without specialized equipment. The activated iodine also provides long-term residual sterilization inside the sealed package.

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Packaging member, meat package, and method to extend shelf life of packaged meat by suppressing bacterial growth during storage. The packaging member has an uneven structure with recesses on the surface that contacts the meat. This structure traps bacteria and prevents their movement, reducing bacterial proliferation on the meat. The uneven structure can be formed on films with 70-90% shrinkage rate. Packaging the meat with this member prevents bacterial growth without drugs, unlike antibacterial coatings.

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Moisture-proof and antibacterial food packaging component that avoids issues of separate moisture-proof and antibacterial layers coming into contact with food. The component has a bag body with a sealing extension, barrier outer layer, water-absorbent layer, and antibacterial layer in sequence. The water-absorbent layer absorbs moisture entering the bag through the barrier layer. The antibacterial layer is breathable to allow water vapor passage. Micropores are created in the antibacterial layer to isolate it from food. This prevents the water-absorbent layer from contacting food and contamination. The micropores also prevent powder from the water-absorbent layer falling into the food. The micropores are made by extracting polylactic acid from the matrix.

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Food packaging material coated with an enzyme called flavozyme to prevent biofilm formation. The packaging material is made by coating the flavozyme onto a food packaging film using an interfacial binder like dopamine. The flavozyme-coated packaging prevents biofilm formation by bacteria like Salmonella and Pseudomonas aeruginosa when used to package food. The interfacial binder improves adhesion of the flavozyme to the packaging film. The coating also provides moisture and oxygen barrier properties.

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Antibacterial and environmentally friendly expanded polystyrene (EPS) packaging boxes that prevent bacterial growth and degradation. The boxes are made by adding high-efficiency antibacterial agents, antioxidants, glass fibers, deionized water, and azobisisobutyramide to PP particles during extrusion and molding. The antibacterial agent is a chitosan-grafted quaternary phosphonium salt. It provides antibacterial properties and biodegradability. Azobisisobutyramide initiates polymerization of the antibacterial agent during foaming to improve box strength.

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Food packaging bag with antibacterial properties and waste collection feature to address the issues of poor antibacterial properties and inconvenient disposal of waste residues in existing food packaging bags. The bag has an outer antibacterial layer, barrier layer, and inner antibacterial sealing layer. It also has a self-sealing strip inside the top opening that attaches to the bag. This strip forms a cavity with a fixed waste bag inside. The strip has a tear strip and U shape at the end to easily detach and dispose the waste bag.

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Fully biodegradable high-barrier antibacterial packaging material for prepackaged food applications. The packaging material degrades in the environment after use and has oxygen barrier and antibacterial properties. The material contains 100 parts of biodegradable resins, 15-25 parts of inorganic fillers, lubricant, compatibilizer, and 0.5-1 part of a plastic antibacterial agent. The packaging material can be prepared using traditional plastics processing methods. The antibacterial agent is iHeir-PSZ or iHeir-ECO.

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Bio-based, easily degradable packaging material for food applications that can improve preservation and freshness. The packaging material is made by combining petrochemical plastics, bio-based materials, fillers, lubricant, compatibilizer, and antibacterial agent. The bio-based materials are starch or straw powder. The antibacterial agent is a compound called iHeir-PSZ or iHeir-ECO. The bio-based packaging material aims to provide environmental benefits by being easily degradable and extending food shelf life.

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Compostable antimicrobial packaging film for perishables that prevents spoilage without contaminating the food. The film has a chemically bonded antimicrobial hydrogel layer on its surface. The hydrogel layer contains antimicrobial agents like antibodies or antimicrobial peptides. The hydrogel layer swells on contact with perishables, providing an antimicrobial barrier without leaching into the food. The antimicrobial agents are bonded to the film surface using treatments like UV, plasma, or corona. This prevents diffusion into the food. The compostable film allows targeting specific bacteria and customizing antimicrobial properties to match packaged items.

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Packaging for preserving products like food by attaching an active member to a carrier to increase the effectiveness of the active member for preserve the product and/or prevent product contamination. The active member is an entrapped polymer containing an antimicrobial, desiccant, or release agent. The entrapped polymer is coextruded with a support film to create a composite film that can be used as a packaging layer. This allows the active member to be attached to the product surface without risk of detaching or falling off. The composite film can be made by coextruding the entrapped polymer and support film together in a coextrusion process.

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An antibacterial oxygen absorber packaging material for food preservation that maintains antibacterial properties after opening. It combines an oxygen absorber with an antibacterial packaging material. The oxygen absorber inside is enclosed in a bag made from a heat-sealable resin layer with an antibacterial agent like aldehydes on the inner side. This prevents oxygen and bacteria growth inside the package. The antibacterial agent impregnated resin layer allows gas exchange but kills bacteria. The oxygen absorber bag inside provides long-term oxygen scavenging. The outer bag prevents odor transfer.

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Packaging material with enhanced antimicrobial and antiviral properties, particularly for food packaging. The packaging has a coating that combines low adhesion properties with antimicrobial properties. The low adhesion prevents buildup of contamination on the packaging surface, while the antimicrobial behavior deactivates any remaining adhered microbes. This reduces the risk of disease transmission through contact with the packaging. The coating can be applied to existing packaging materials like films, sheets, and molded structures. It contains components like anti-microbial agents, wetting agents, and cross-linking agents to achieve the combined properties.

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Antibacterial environment-friendly food packaging boxes and a preparation process to make them. The process involves cleaning the packaging material using a device with telescopic rods, cylinders, pumps, and filters to fully clean the material before packaging. This prevents dust contamination. The boxes themselves have antibacterial layers like polyhexamethylene guanidine, chlorhexidine gluconate, copper nitrate hexahydrate, nano zinc oxide, and sodium dodecyl benzene sulfonate. The layers on the packaging materials provide long-term antibacterial properties to prevent bacterial growth in the packaged food.

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Preventing contamination of compositions like cosmetics and pharmaceuticals by incorporating antimicrobial agents into the material of containers and delivery devices. The antimicrobial agents are microparticles that are distributed within a matrix material like a polymer. The microparticles do not migrate out of the matrix, so they remain inside the container and prevent contamination when the composition comes into contact with the container. This avoids issues like migration of nanoagents or leaching of toxic chemicals. The antimicrobial effect prevents biofilm formation on the container surface. The microparticles can be added to the molten matrix before solidification.

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Fully biodegradable, antimicrobial packaging bags and boxes that have improved freshness preservation, waterproofing, oil resistance, and degradation compared to conventional bags. The bags are made by coating a biodegradable material like paper with a preservative solution containing compounds like citric acid, sodium alginate, sodium benzoate, and sodium metabisulfite. The coated bags have high freshness retention, bacterial inhibition, waterproofness, and oil resistance. The preservative compounds prevent spoilage, mold growth, and bacteria while the biodegradable material allows natural breakdown.

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Antimicrobial composite material for food packaging that reduces microbial growth to extend shelf life and improve food safety. The material is made by combining a polymer matrix with a filler of double copper salt supported on pyrogenic silica. The copper ions leached from the filler provide antimicrobial activity against bacteria like Staphylococcus aureus and Salmonella enterica. The copper migration levels are within regulatory limits for food contact materials.

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Antimicrobial packaging films to extend the shelf life of food products by accelerating the release of antimicrobial agents from the film into contact with the packaged food. The films have a product contact layer with specific compositions and antimicrobial concentrations to rapidly migrate the antimicrobials to the food surface. This prevents spoilage by inhibiting microbial growth on the food during storage. The antimicrobial agent release kinetics are optimized to delay the onset of microbial deterioration for extended product shelf lives.

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Developing biodegradable polymers with antimicrobial properties for applications like stationery, pharmaceuticals, medical devices, and food packaging. The polymers are made by incorporating antimicrobial agents like ammonium salts, cyclodextrins, peptides, enzymes, natural extracts, essential oils, acids, alcohols, and aldehydes into the polymerization process. These antimicrobial additives provide the polymers with antibacterial, antifungal, and antiviral properties.

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