Abstract:
A method of bonding an antimicrobial cationic polyelectrolyte to the surface of a substrate is described, wherein the antimicrobial thus attached to the substrate provides the substrate with antimicrobial properties, and at least a portion of the bonded antimicrobial is substantially non-leachable during normal conditions of use and storage. A method of manufacturing an antimicrobial material is described which comprises exposure of the substrate to a solution of antimicrobial cationic polyelectrolyte, followed by drying the exposed substrate thoroughly to impart a non-leaching property to at least a portion of the antimicrobial cationic polyelectrolytes.
Abstract:
A flowable, biodegradable endovascular embolic composition effective for embolizing a vascular defect consisting essentially of: (a) a biocompatible, biodegradable polymer or polymeric material forming composition; (b) a biocompatible embolic solvent for the polymer or polymer forming composition capable of diffusion into mammalian tissue; (c) biocompatible magnetic particles responsive to a magnetic field; wherein: the polymer or polymeric forming material and solvent are present in the composition in amounts and relative proportions such that (1) the composition is deliverable to a vascular defect site and (2) upon delivery to the site, solidifies into an embolic mass; and the magnetic particles are present in the composition in an amount sufficient to enable the composition being deliverable to the vascular site by a magnetic field. Also disclosed are methods and articles of manufacture embodying the above-described composition.
Abstract:
Systems and methods are provided for monitoring use of handwashing agents to determine compliance with hand hygiene guidelines. A handwashing agent is provided with a detectable, volatile compound, such as odors, which is then rubbed onto a subject's hands using the subject's handwashing technique. After the handwashing event, the subject's hand is then exposed to an detector (such as a badge), which includes a sensor capable of detecting the volatile compound, and an indicator that communicates detection of the volatile compound, indicating use of the handwashing agent and hand hygiene compliance.
Abstract:
A method of bonding an antimicrobial cationic polyelectrolyte to the surface of a substrate is described, wherein the antimicrobial thus attached to the substrate provides the substrate with antimicrobial properties, and at least a portion of the bonded antimicrobial is substantially non-leachable during normal conditions of use and storage. A method of manufacturing an antimicrobial material is described which comprises exposure of the substrate to a solution of antimicrobial cationic polyelectrolyte, followed by drying the exposed substrate thoroughly to impart a non-leaching property to at least a portion of the antimicrobial cationic polyelectrolytes.
Abstract:
The present invention concerns novel materials and methods to detect low frequency surface changes utilizing modified microspheres. Upon exposing the surface to the modified microspheres of the subject invention, the microspheres selectively adhere to any targeted surface marker.
Abstract:
This invention relates to methods and compositions for materials having a non-leaching coating that has antimicrobial properties. The coating is applied to substrates such as gauze-type wound dressings. Covalent, non-leaching, non-hydrolyzable bonds are formed between the substrate and the polymer molecules that form the coating. A high concentration of anti-microbial groups on multi-length polymer chains and relatively long average chain lengths, contribute to an absorbent or superabsorbent surface with a high level antimicrobial effect.
Abstract:
Systems and methods are provided for monitoring use of handwashing agents to determine compliance with hand hygiene guidelines. A handwashing agent is provided with a detectable, volatile compound, such as odors, which is then rubbed onto a subject's hands using the subject's handwashing technique. After the handwashing event, the subject's hand is then exposed to an detector (such as a badge), which includes a sensor capable of detecting the volatile compound, and an indicator that communicates detection of the volatile compound, indicating use of the handwashing agent and hand hygiene compliance.
Abstract:
A method of localized cell heating introduces a plurality of ferroelectric comprising particles into a target region of a patient, and applies a time varying electrical field to the target region. The ferroelectric particles absorb energy from the electrical field and heat the target region in response, such as to a temperature sufficient to induce apoptosis of cancer cells in the target region. A ferroelectric hyperthermia-based cancer treatment system includes a time varying electrical field source for applying a time varying electrical field to a plurality of ferroelectric particles disposed in a target cancer containing region of a patient. A composition of matter includes a particle having a ferroelectric portion, the particle being non-toxic, slowly biodegradable in body fluids, and less than 15 μm in its maximum dimension.
Abstract:
A method of localized cell heating introduces a plurality of ferroelectric comprising particles into a target region of a patient, and applies a time varying electrical field to the target region. The ferroelectric particles absorb energy from the electrical field and heat the target region in response, such as to a temperature sufficient to induce apoptosis of cancer cells in the target region. A ferroelectric hyperthermia-based cancer treatment system includes a time varying electrical field source for applying a time varying electrical field to a plurality of ferroelectric particles disposed in a target cancer containing region of a patient. A composition of matter includes a particle having a ferroelectric portion, the particle being non-toxic, slowly biodegradable in body fluids, and less than 15 μm in its maximum dimension.
Abstract:
Amino acid functionalized polymers useful for graft copolymerization prepared by reacting a mixture containing, for chain transfer, a thio-substituted amino acid and an ethylenically unsaturated monomer.