4490 results about "Antimicrobial" patented technology

The invention relates to a substantially homogenous liquid composition capable of percutaneous delivery of one or more physiologically active agents, the composition including a rate modulating polymer, a volatile solvent and at least one physiologically active agent, said rate modulating polymer being selected to enable modulation of the rate of delivery of said physiologically active agent. Methods of percutaneous delivery of active agents and of prophylactic or therapeutic antimicrobial, antifungal or antiviral treatment using the compositions of the invention are also described.

The present invention relates to moving microorganisms to a surface, where they are grown in the presence and absence of antimicrobials, and by monitoring the growth of the microorganisms over time in the two conditions, their susceptibility to the antimicrobials can be determined. The microorganisms can be moved to the surface through electrophoresis, centrifugation or filtration. When the movement involves electrophoresis, the presence of oxidizing and reducing reagents lowers the voltage at which electrophoretic force can be generated and allows a broader range of means by which the target can be detected. Monitoring can comprise optical detection, and most conveniently includes the detection of individual microorganisms. The microorganisms can be stained in order to give information about their response to antimicrobials.

A method of building an orthopedic implant including the steps of mixing a powder having antimicrobial properties with a biocompatible powder to form a mixture. Next, the mixture is deposited on top of a substrate. The substrate may be part of the finished product or only a work platform. The mixture layer is then selectively melted.

The disclosure provides oral compositions having at least two botanical active ingredients derived from plants. The oral composition also includes an orally acceptable vehicle to deliver an effective amount of the at least two active ingredients in vivo. The botanical active ingredients provide particularly efficacious antimicrobial (antibacterial, antiviral, and/or antifungal), antioxidant, anti-inflammatory, anti-ageing, and or healing properties to the oral compositions.

The present invention relates to an antimicrobial material comprising sheet of fabric and- metallic salt crystals embedded in an adhesive material covering the sheet of fabric.

Methods for preparing a series of mesoporous silicates, such as room-temperature ionic liquid (RTIL)-templated mesoporous silicate particles, with various particle morphologies are provided. Methods for preparing silicate particles with antimicrobial agents within the MSN pores is also provided. The particles can be used as controlled-release nanodevices to deliver antimicrobial agents.

Substrates, optionally coated with an undercoating layer, having grafted there from one or more non-fouling materials are described herein. The non-fouling, polymeric material can be grafted from a variety of substrate materials, particularly polymeric substrates and/or polymeric undercoating layers. The graft-from techniques described herein can result in higher surface densities of the non-fouling material relative to graft-to formulations. Graft-from methods can be used to produce covalently tethered polymers. The compositions described herein are highly resistant protein absorption, particularly in complex media and retain a high degree of non-fouling activity over long periods of time. The compositions described herein may also demonstrate antimicrobial and/or anti-thrombogenic activity. The non-fouling material can be grafted from the substrate, or optionally from an undercoating layer on the substrate, preferably without significantly affecting the mechanical and/or physical properties of the substrate material.

A composition and method for treating a wound with an inherently antimicrobial dressing. The dressing is a hydrogel containing from about 15 to 95 percent, and preferably from about 61 to 90 percent, by weight of a cationic quaternary amine acrylate polymer prepared by the polymerization of acryloyloxyethyl(or propyl)-trialkyl(or aryl)-substituted ammonium salts or acrylamidoethyl(or propyl)-trialkyl(or aryl)-substituted ammonium salts. The antimicrobial hydrogels are non-irritating to the wound, absorb wound exudate, and, due to the inherently antimicrobial properties, enhance the sterile environment around the wound. The hydrogels have sufficient adhesive properties that loose contact with the wound is assured but can also be removed without leaving any gel residue on the wound. The wound dressings are preferably formed on a substrate, such as a web or patch, for ease in application to and removal from the wound. If desired, additional antimicrobial or other pharmaceutically active agents can also be incorporated into the hydrogel structure.

The present invention relates to antimicrobial compositions including a critical, near critical, or supercritical (densified) fluid and an antimicrobial agent, to methods of forming these compositions, and to methods employing these compositions. An antimicrobial agent can be generated in the presence of a densified fluid, for example, by reacting an oxidizing agent with a precursor to the antimicrobial agent.

An antimicrobial IV access cap having an inner surface for retaining an antimicrobial agent, and further configured to receive a portion of an access port of an intravascular device.

An antistaling plastic film for fruit and vegetable is prepared from the air-permeable inorganic moisture penetrating agent, antibacterial agent, ethylene absorbing and decomposing agent, and resin. Its advantage is high antistaling effect.

The invention relates to an antibacterium nano fiber material and a preparation method thereof; the material comprises polymer superfine fiber and antibacterial agent, and the weight ratio is 60 to 98: 2 to 40; the preparation method comprises the following steps: (1) the antibacterial agent is dissolved in distilled water to prepare solution; the polymer superfine fiber is dissolved in methylene dichloride or chloroform organic solvent, emulsifier is added to be mixed evenly, to obtain solution which is dispersed evenly; (2) the two types of solution are mixed to obtain even water-in-oil W/O latex, and then electrostatic spinning is conducted to the latex, to obtain the antibacterium nano fiber material. The nano fiber material has good ventilation property and filterability, still has bacteriostasis and sterilization functions for a long time after stably releasing the antibacterial agent, has simple preparation method, adopts the biodegradable and bioabsorbable polymer as carrier materials, can be absorbed by the human body after fully releasing, is not left, does not need secondary operation and has no side effect.

Substrates, optionally coated with an undercoating, having grafted thereto one or more non-fouling materials are described herein. The non-fouling, polymeric material can be grafted to a variety of functionalized substrate materials, particularly polymeric substrates and/or polymeric undercoatings immobilized on a substrate. The compositions described herein are highly resistant protein absorption, particularly in complex media and retain a high degree of non-fouling activity over long periods of time. The compositions described herein may also demonstrate antimicrobial and/or anti-thrombogenic activity. The non-fouling material can be grafted to a functionalized substrate, or optionally from an undercoating on the substrate, preferably without significantly affecting the mechanical and/or physical properties of the substrate material

A medical device for long-term implantation is provided, as well as a method of making the same and a method of treatment using the same. The medical device comprises (1) a reservoir including (a) a polymer matrix and (b) an antimicrobial agent disposed within the polymer matrix, wherein the reservoir is adapted for long-term release of the antimicrobial agent from the polymer matrix; and (2) a surfactant region disposed over the reservoir at an outer surface of the device.

Provided are compositions and methods for selectively reducing the amount of antibiotic resistant and/or virulent bacteria in a mixed bacteria population, or for reducing any other type of unwanted bacteria in a mixed bacteria population. The compositions and methods involve targeting bacteria that are differentiated from other members of the population by at least one unique clustered regularly interspaced short palindromic repeats (CRISPR) targeted DNA sequence. The compositions and methods can be readily adapted to target any bacteria or any bacteria plasmid, or both.

The invention relates to an anti-bacterial thermoplastic composite, which comprises the following mixed components: 100 parts of thermoplastic by weight and 0.1-40 parts of composite antibacterial agent by weight, wherein the composite antibacterial agent comprises micronano inorganic/organic particles and guanidinesalt polymers which are coated on the surfaces of the micro/nano particles and/or embedded among pores and layers of the micronano particles; the weight ratio of the guanidinesalt polymers to the micro/nano particles is 1:1-1:50; and the micro/nano particles have at least a one-dimensional average size of 1nm-1000mum. The anti-bacterial thermoplastic composite is obtained by melting and mixing the components such as the thermoplastic, the composite antibacterial agent, and the like, therefore the antibacterial rate of the anti-bacterial thermoplastic composite is higher and the preparation method is simple.

Disclosed herein are formulations of fluoroquinolones suitable for aerosolization and use of such formulations for aerosol administration of fluoroquinolone antimicrobials for the treatment of pulmonary bacterial infections. In particular, inhaled levofloxacin specifically formulated and delivered for bacterial infections of the lungs is described. Methods include inhalation protocols and manufacturing procedures for production and use of the compositions described.

The present invention relates to metallic sheets having an improved antimicrobial property and also related to a method of manufacturing such sheets. More particularly, it relates to the continuous coating on metallic sheets with a resin composition containing antimicrobial additives. The surface of the metallic article is afforded antimicrobial properties by coating a liquid dispersion or solution of fine particles made of an antimicrobial ingredient on the surface of the metallic sheet dispersed in a uniform layer and cured or dried to affix to the metallic surface. The inorganic antibacterial particles are metal component-supporting oxides and zeolite powders. The inorganic antibacterial core particles have at least a primary surface coating of at least one metal or metal compound having antimicrobial properties. Roll coaters apply the coating. The metallic article generally includes sheet articles made of metals, for example, metallic sheets made of stainless steel, conventional steel sheets and aluminum sheets or plate.

The invention relates to the improvement of endonuclease-based antimicrobials by blocking DNA repair of double-strand break(s) (DSB(s)) in prokaryotic cells. In this respect, the invention especially concerns a method involving blocking DNA repair after a nucleic acid has been submitted to DSB, in particular by a Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) associated programmable double-strand endonuclease. The invention particularly relates to the use of an exogenous molecule that inhibits DNA repair, preferably a protein that binds to the ends of the double-stranded break to block DSB repair. The invention also relates to vectors, particularly phagemids and plasmids, comprising nucleic acids encoding nucleases and Gam proteins, and a pharmaceutical composition and a product containing these vectors and their application.

A thixotropic, non-cytotoxic, topical hydrogel that contains a proven safe and effective, broad spectrum, antimicrobial agent based on a unique electrolytically derived sodium hypochlorite solution.

The present invention relates to a sterilization unit consisting of a cubical enclosure which uses a sequenced supply of ozone and ultraviolet radiation in the C band (UVC) wave length to sterilize. In use, an article to be sterilized is positioned atop a glass plate mounted between two sources of UVC radiation sources and ozone is first supplied to the enclosure for a period of 15 seconds to 60 minutes followed by a supply of UVC radiation for a period of 15 seconds to 60 minutes.

An antibacterial fluid may be applied to a tubular medical cannula for access to a patient. The fluid comprises a typically metabolizable antibacterial formulation having a viscosity of at least about 5,000 cp. The cannula may then be inserted into the patient with an increased lubricity for a reduction of pain, while at the same time, unlike silicones, preferred materials do not readily accumulate in the patient. The tubular medical cannula may be a rigid, hollow needle, sharp or blunt, a spike, or a flexible catheter. Also, the viscous antibacterial fluid may be used to lock a catheter or other cannula while implanted in the patient, for storage purposes. The formulation is typically an alcohol plus a viscosity increasing agent.

The present invention relates to a preservative or antimicrobial compositions which comprise low concentrations of botanical extracts, in synergistic combinations with alkanediols in a solvent system, optionally with fruit acids. Additionally, the present invention relates to a preservative or antimicrobial compositions which comprise a silver compound, an essential oil or individual constituent, one or more zinc salts, and one or more alkanediol. The compositions of the invention may be used in personal care products including wound care products or in veterinary use. Preferably, the compositions of the invention have little or no human-detectable fragrance.

Composite materials having at least one of the following desirable properties is described. Such properties include: rigidity, printability, water-proofness, pliability, recyclable, thermochromic, antimicrobial, electrically conductive, compostable or biodegradability. The composite includes a filler-containing layer and a fiber-containing layer substantially coupled together continuously across the at least one surface of the layers. These composites maybe useful in various markets including, but not limited to, construction, packaging, shipping, consumer products and medical packaging. The inventive composites provide, advantages such as reduction of environmental footprint, improved mechanical properties, usefulness/cost ratio, reduction in material costs compared to prior art, and cosmetic performance are embodied in the present invention.

An antibacterial fluid may be applied to a tubular medical cannula for access to a patient. The fluid comprises a typically metabolizable antibacterial formulation having a viscosity preferably greater than 150,000 cp. The cannula may then be inserted into the patient with an increased lubricity for a reduction of pain, while at the same time, unlike silicones, preferred materials do not readily accumulate in the patient. The fluid may be placed on the skin. The tubular medical cannula may be a rigid, hollow needle, sharp or blunt, a spike, or a flexible catheter. Also, the viscous antibacterial fluid may be used to lock a catheter or other cannula while implanted in the patient, for storage purposes. The formulation is typically an alcohol plus a viscosity increasing agent and optionally a surfactant, a clotting agent, and/or EDTA.