Antimicrobial Packaging Solutions for Contamination Control

Injection molded cellulosic fiber gardening supports that resist degradation and damage in greenhouse and soil conditions, without using asphalt or peat. The supports have thinner walls compared to conventional ones, but still retain strength. The resistance to microbial growth allows reducing or eliminating asphalt. Antimicrobial agents are added to the fiber slurry to prevent degradation. The supports have root permeability for easier transplanting. The process involves making the supports with low bond strength fibers to reduce wall strength and facilitate root penetration. The supports can be used as transplantable containers for seeds, seedlings, and cuttings.

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An antimicrobial agent for wound care that reduces contact allergies and toxicity compared to traditional zinc and colophony-based wound dressings. The agent is a combination of highly pure individual acids derived from resin acids found in colophony, like dehydroabietic acid, and zinc oxide. This mixture provides antibacterial activity comparable to colophony-zinc dressings but without the contact allergies and toxicity issues associated with colophony. The pure acids and zinc oxide can be used in wound dressings, rinses, and other medical products to treat wounds without causing allergic reactions or toxic effects.

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Microbicidal acoustic ceiling tiles that inhibit the growth of microorganisms and viruses in their pores. The tiles have a microbicide incorporated during manufacturing to provide long-term antimicrobial and antiviral protection. The microbicide is applied as a spray coating on the tile's interior pore surfaces before the tiles are cured. The coating penetrates into the pores to provide lasting antimicrobial action against bacteria, fungi, and viruses.

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Bactericidal contact lens material that prevents bacterial growth on the lens surface to protect the eye. The contact lens material has bactericidal properties due to the incorporation of bactericidal ceramics containing metals like silver, copper, or zinc. These ceramics are mixed into the lens material by kneading or applied onto the lens surface. The bactericidal ceramics have ion exchange properties that prevent metal leaching while providing sustained bactericidal activity. The amount of bactericidal ceramics added is limited to avoid adversely affecting lens properties like transparency and conformability.

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Surgical drapes that release antimicrobial agents to reduce infection risk. The drapes have the antimicrobial agents dispersed in the polymeric material itself and optionally in adhesives used to attach the drapes. This provides continued antimicrobial coverage when the drapes come into contact with skin. The antimicrobials migrate to the surface and release over time as they are removed by the skin.

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Medical instrument with surfaces that continuously prevent bacterial contamination in fluids. The instrument contains compounds mixed into the thermoplastic resin or rubber materials of surfaces that contact fluids. The compounds prevent bacterial growth when the fluid passes through or is contained in the instrument. This provides continuous and effective prevention against bacteria and microorganism contamination in medical devices like respiratory circuits, urinary bags, and IV drip chambers. The compounds can be mixed into the resin or rubber during molding or applied as coatings to existing surfaces.

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Antimicrobial medical gloves to reduce infection risks. The gloves contain antimicrobial agents incorporated into the glove material itself, as well as antimicrobial powders on the inside surface. The gloves have antimicrobial properties that provide protection for several hours. The non-ionic, sparingly water soluble antimicrobial agents like triclosan, chlorhexidine digluconate, and their complexes with cyclodextrins are mixed into the glove material prior to manufacturing. This provides consistent and effective antimicrobial properties throughout the glove. The antimicrobial powders on the inside surface add an extra layer of protection.

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Antimicrobial condoms and catheters made by incorporating a non-ionic, sparingly water soluble antimicrobial agent like triclosan into the rubber during manufacturing. This allows the antimicrobial to be uniformly distributed throughout the condom or catheter without coating or impregnation steps. The low solubility of the antimicrobial prevents leaching during processing. It provides antimicrobial protection during use by improving barrier properties against bacteria and viruses like HIV.

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Chemical sterilization method for dental and medical instruments using a solution containing polyvinylpyrrolidone iodine (PVP-I) and hydrogen peroxide or other peroxy compounds. The solution has enhanced antimicrobial and viricidal activity compared to using just PVP-I or peroxide alone. The admixture provides potentiated antimicrobial activity against bacteria, viruses, and other contaminants. It allows quick, inexpensive, and effective sterilization of instruments and appliances compared to thermal methods. The solution can also be used to sterilize surgical sites by washing, spraying, or swabbing.

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Antimicrobial condoms and catheters that reduce infection risk during use. The condoms and catheters contain an antimicrobial agent like triclosan directly in the material they are made from, like natural rubber latex. This avoids the need for post-processing steps like coating or impregnation. The antimicrobial agent is mixed into the latex before forming the article. The low water solubility of the antimicrobial agent allows it to remain in the rubber during manufacturing. It releases from the article surfaces during use to provide antimicrobial effectiveness.

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Antimicrobial tubular articles like condoms and catheters made by incorporating a non-ionic, sparingly water soluble antimicrobial agent like triclosan into the material during manufacturing. This allows the articles to have antimicrobial properties without the need for post-processing steps like coating or impregnation. The antimicrobial agent is mixed into the rubber latex before molding into the final shape. The low solubility of the antimicrobial keeps it in the article during processing and leaching steps. The antimicrobial is released from the inside and outside during use to provide antimicrobial protection.

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Antimicrobial gloves for medical use that reduce the risk of infection by preventing contamination and infection from punctures or tears in the gloves. The gloves are made with antimicrobial agents incorporated into the glove material itself, as well as antimicrobial powders on the inside surface. The antimicrobial agents are sparingly water soluble compounds like triclosan and chlorhexidine digluconate. These agents provide long-lasting antimicrobial protection from inside and outside the glove, reducing the risk of contamination from punctures or tears.

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Sterilizing implantable medical devices like surgical instruments and dental implants using electrically conductive silver electrodes after insertion to kill bacteria and prevent infections. Small electric currents in the range of 0.1 to 40 microamperes are applied through the silver electrodes to achieve bactericidal effects on the implants and surrounding tissue. This provides additional sterilization beyond initial pre-op procedures and helps prevent deep-seated infections post-op.

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