Method of selectively applying an antimicrobial coating to a medical device or device material

• Main Authors: NEESE, JON N, BONN-SAVAGE, NATHAN G
• Format: Patent
• Language: English
• Published: 11.07.2013
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; HYGIENE; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NANOTECHNOLOGY; NOZZLES; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; TRAPPING

A process for depositing nanoparticles on a surface. The process includes the steps of: providing a sol including a volatile non-aqueous liquid and nanoparticles suspended in the non-aqueous liquid; processing the sol to form a plurality of droplets; depositing the plurality of droplets on a surface; and evaporating the non-aqueous liquid from the surface leaving a residue of nanoparticles. The liquid can be selected from heptane, chloroform toluene, and hexane and mixtures thereof and the nanoparticles are desirably silver nanoparticles. The plurality of droplets may be formed by a spray process. The surface may be selected from a particular area, region, portion, or dimension of a medical device, device material, packaging material or combinations thereof. The residue of nanoparticles desirably provides antimicrobial properties.