169 results about "Antimicrobial surface" patented technology

The application relates to an article having a antimicrobial surface with a metal ion concentration, especially a Ag-concentration in a depth of about 0 um to about 2 um of the article measured from the surface higher than 0,6 wt %, preferably 0,8 weight-%, most preferably 1 weight-%.

A non-toxic antimicrobial surface sanitizer composition comprising a water-miscible alcohol, water, a weak acid and a multivalent cation (e.g., metal ion or metal compound). The composition may also include one or more of an emollient, oxidative agent, humectant, lubricant, plant-derived alkene, antimicrobial component or plant-derived essential oil. These compositions can be formulated as solutions for sanitizing hard surfaces such as countertops and floors, or as solutions/gels for application to animal skin.

An actively antimicrobial surface for a substrate and for use in a biologically dynamic environment, such as for treating and preventing microbial infections, including a film consisting of at least an antimicrobial element and another electrochemically nobler element and which forms multitudinous galvanic cells with electrolyte-containing biological fluids, such as body fluids from wounds, etc., for releasing the antimicrobial element at the surface.

A method is provided for depositing a hard wear resistant surface onto a porous or non-porous base material of a medical implant. The wear resistant surface of the medical implant device may be formed by a Laser Based Metal Deposition (LBMD) method such as Laser Engineered Net Shaping (LENS). The wear resistant surface may include a blend of multiple different biocompatible materials. Further, functionally graded layers of biocompatible materials may be used to form the wear resistant surface. Usage of a porous material for the base may promote bone ingrowth to allow the implant to fuse strongly with the bone of a host patient. The hard wear resistant surface provides device longevity, particularly when applied to bearing surfaces such as artificial joint bearing surfaces or a dental implant bearing surfaces. An antimicrobial material such as silver may be deposited in combination with a metal to form an antimicrobial surface deposit.

A process for production of an actively antimicrobial surface for a substrate and for use in a biologically dynamic environment, such as for treating and preventing microbial infections, including a film consisting of at least an antimicrobial element and another electrochemically nobler element and which forms multitudinous galvanic cells with electrolyte-containing biological fluids, such as body fluids from wounds, etc., for releasing the antimicrobial element at the surface.

A device for threading a conduit into a communication with a vein or artery beneath the skin of a patient, during insertion of components such as a PICC line is provided. Surfaces of a hollow needle, dilator, and sheath included in kit, and which are anticipated to contact the skin of a patient during the procedure are provided with an antimicrobial surface area formed thereon. The surface area so positioned prevents bacteria and other pathogens from occupying the contacting surfaces and thereby being communicated into the tissue below the patient's skin.

Microbial growth on the surface of a valve of a voice prosthesis and optionally the cartridge or ring supporting the valve, is inhibited by providing antimicrobial activity at a level sufficient to retard growth of a microbial film by dispersing an inorganic antimicrobial agent such as silver oxide or an organic antimicrobial agent such as triclosan or butyl paraben dispersed in a medical grade silicone elastomer. The valve, ring or cartridge is in contact with body fluids containing microorganisms and nutrients therefor. The antimicrobial surface can interfere with or inhibit the growth of a biofilm, bacterial layer or a yeast layer. The body of the prosthesis may also contain an antimicrobial surface as long as it is non-toxic to the tissue it contacts.

One aspect of the present invention is directed to antimicrobial surfaces comprised of hydrocarbon polymers with significant hydrophobic character which also contain an amino group with a pKa greater than or equal to about 8. In certain embodiments initiated chemical vapor deposition (iCVD) is used to coat a surface with an antimicrobial polymer.

An antimicrobial melamine resin includes an antimicrobial agent incorporated therein. The melamine resin is useful for making melamine-based decorative laminate articles having a tough, mar-resistant antimicrobial surface and for molded melamine articles exhibiting antimicrobial properties.

The invention provides polymers, methods of preparing polymers, and compositions that include polymers, wherein said polymers include a plurality of two-carbon repeating units in a polymer chain, wherein one or more of the two-carbon repeating units of the polymer chain have tertiary amine or pyridine-containing substituents; and at least about 10% of the nitrogen atoms of the tertiary amine or pyridine-containing substituents are quaternized with alkyl groups or with an alkyl group that contains one or more ethylene glycol groups. The alkyl or ethoxylated alkyl groups can also be at least partially fluorinated. The polymers can be used to provide antimicrobial surfaces and antifouling coatings.

Gelatinous foam, coated paper, fabric, and polymer materials combined with the Colloidal Silver or Gold additive to formulate products with antimicrobial surfaces. Some embodiments of the present invention can include gelatinous materials selected from a group consisting of thermosetting polymer, Styrene-Ethylene-Butadiene-Styrene polymer (SEBS), Thermoplastic Elastomer (TPE), and Polyurethane (PU) gelatin with and without a raised geometry on an outer surface and in any shape. The various embodiments include coated polymer sheets, polymer trays, bamboo and/or cotton towels and fabric, polymer foam, or polymer mats containing nano-silver or nano-gold in an scheduled and organized manner (with input/requests from the customer) to create permanent or semi-permanent anti-microbial surfaces.

Processes for providing durable antimicrobial surfaces are disclosed that comprise treating a polymer substrate surface with formaldehyde followed by treatment with an antimicrobial peptide. Further embodiments include articles, including medical devices, characterized by a durable antimicrobial surface provided by the processes of the invention.

Silver coated nylon fibers are disclosed that can be used to make fabrics that are silver coated on one side of the fabric. Silver coated nylon fabrics provide an antimicrobial surface which remains on the surface and retains its antimicrobial characteristic until destroyed. The methods of adherence of the silver to the nylon fabric may be performed in a number of ways. The creation of a single fabric with one side silver coated and the other side being dyed or left natural is encompassed within this invention. In addition there can be more than two yarns creating the fabric such as the use of spandex to provide a more elastic garment.

The present invention involves the use of photosensitizers to provide antibacterial surfaces on consumer and industrial items. This approach avoids the used of chemicals and solutions that may be toxic. The inventions also avoids the use of chemical compositions that might form degradation products which may be unacceptable to healthy persons or irritating to persons who may have allergies or are otherwise sensitized. According to the invention, photosensitizers with specific properties and specific design features are selected to make practical use of photosensitizers in the consumer and industrial market place. It is important to select a photosensitizer with an activation spectrum that is matched to the environmental conditions under which the surface to be protected is required to exhibit its antimicrobial properties. This means that the illumination energy and intensity levels expected need to yield enough singlet oxygen to destroy the targeted microbes. It is also possible to select photosensitizers that are activated only by wavelengths prominently present in certain illumination lamps, such as those lamps commonly present in a laboratories, medical offices, pharmacies and food service areas, thereby making the surfaces antimicrobial only on demand when the illumination lamps are turned on.

Process to obtain antibacterial surfaces by silver deposition in the form of firmly bonded small particles and to the antibacterial substances obtained by aforementioned treatments. Silver deposition is obtained by surface impregnation of natural or synthetic material in an alcoholic solution with silver salt and, later, by their exposure to UV-rays until metal silver clusters form as a result of silver ions reduction on the material surface. The invention relates to the obtained antibacterial substances.

The simple preparation of the antibacterial material makes the whole process easier both for required time and for costs: the needed devices are just a UV lamp and an Ultrasound bath.

The claimed invention involves a novel preparation comprising a dispersion of wax and silver particles that is effective for reducing bacteria on surfaces. The surface preparation according to the present invention comprises particles of silver dispersed in wax. A method for making the surface preparation according to the present invention includes combining a supply of wax with a supply of silver particles.

A substrate having an antimicrobial surface. The texture of the surface which has exposed metal e.g., copper or copper alloy contributes to the antimicrobial properties. Cavities or depressions in the surface can be coated or partially coated with an organic polymer, and the polymer can contain antimicrobial agents. Methods of preparing a coated surface, and uses are described.

Silver coated nylon woven and non-woven fibers are disclosed that can be used to make fabrics, bags, and pads that are silver coated on one side of the fabric, bag, and/or pad. Silver coated nylon fabrics, bags, and pads provide an antimicrobial surface which remains on the surface and retains its antimicrobial characteristic until destroyed. The silver coating can be used as a way to eliminate, reduce and/or ameliorate odors emanating from the bacteria. The methods of adherence of the silver to the nylon may be performed in a number of ways. The pads may be further associated with protective gear that can be used by professions and athletes that use protective gear.

A surface treatment powder comprising (a) about 50 wt. % or more of a percarbonate, perphosphate, persulfate, peroxide or perborate salt; (b) about 0.2-10 wt. % of a chlorinated isocyanurate salt; and (c) a bleach activator, and method of using same to inhibit the growth of a microorganism on a surface.

Liquid dispenser or water purification unit with a housing and a mouthpiece configured for contact with the mouth of a person, wherein at least part of the housing or part of the mouthpiece or parts of both have an antimicrobial surface.

The invention relates to a method for preparing antimicrobial surface on a biological medical material surface. The method comprises the following steps: carrying out amination treatment on multiple substrates with different properties; depositing a polyelectrolyte containing guest molecule adamantyl group onto the aminated substrate surface by a layer-by-layer packaging technique to prepare a polyelectrolyte multilayer film; and finally, immobilizing quaternary-ammonium-salt-modified beta-cyclodextrin derivatives on the polyelectrolyte multilayer film surface under the mutual actions of the host and guest, thereby finally preparing the antimicrobial surface. The method has universality, and is suitable for multiple substrates with different properties and shapes. The prepared antimicrobial surface has broad-spectrum mold resistance.