Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Antimicrobial composite material

An anti-microbial and biocide technology, applied in metal material coating technology, biocides, animal repellants, etc., can solve the problems of large amount of reagents, cannot be used in medical products, cannot exclude cytotoxicity, etc. The effect of durability

Active Publication Date: 2007-01-10
BIO GATE AG +1
View PDF5 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of reagent released is too high to rule out a cytotoxic effect
Coatings such as those described in said document are only useful for wipes and generally cannot be used for medical products and especially not for implantable products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antimicrobial composite material
  • Antimicrobial composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: prepare coating material of the present invention

[0049] In a first coating step, the solid substrate to be coated with the antimicrobial and non-cytotoxic coating material of the present invention is coated with porous nanoscale silver. This is achieved by vaporizing metallic silver in an inert gas atmosphere, such as argon, at an operating pressure of about 10 mbar. A silver coating (biocide layer) is produced on this substrate, said coating containing single silver particles or chains of silver particles. The average particle size of the silver particles is 10-20nm. The thickness of the silver coating (biocide layer) is about 20 nm.

[0050] In a second coating step, a plasma polymer layer containing hexamethyldisiloxane (HMDSO) as precursor is applied. Made of 95% O at a working pressure of 0.07 mbar 2 Plasma polymerization was performed with a working gas composed of 5% HMDSO. After 45 seconds of plasma polymerization under the stated condition...

Embodiment 2

[0052] Example 2: Preparation of a coating material according to the invention using an adhesion-promoting layer

[0053] In a first step, the substrate to be coated with the coating material of the invention is coated with a titanium dioxide film by plasma polymerization. The precursor used is titanium tetraisopropoxide mixed with oxygen. The polymerization time was 5 minutes. Forms 25nm thick TiO with good adhesion 2 membrane.

[0054] In the second coating step, in ultra-high vacuum, a thin metallic silver layer was deposited on the TiO 2 film. During deposition, the process pressure was 10 -4 millibar. Evaporation is carried out so that a 10-20 nm thick silver layer (biocide layer) is deposited on the TiO 2 film.

[0055] In a third coating step, a plasma polymer film (transport control layer) is coated on the silver layer. Plasma polymerization was performed as described in Example 1. A 45 nm thick layer of highly hydrophilic plasma polymer was formed.

[0056]...

Embodiment 3

[0057] Example 3: Application of a Transport Control Layer to a Biocidal Solid

[0058] Using the plasma polymerization method described in Example 1, a plasma polymer film was deposited on the copper solid layer as a transport control layer. Compared with Example 1, the plasma coating process was performed for 450 seconds. The transport control layer thus produced had a thickness of 100 nm. The resulting coating material according to the invention, the biocide layer is an initial layer of solid copper.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Surface energyaaaaaaaaaa
Login to View More

Abstract

The invention relates to an antimicrobial and preferably non-cytotoxic composite material and to various uses of said composite material.

Description

technical field [0001] The invention relates to an antimicrobial and preferably non-cytotoxic coating material and to the use of said coating material. Background technique [0002] There is a continuing need in many fields to control the colonization, reproduction and survival of microorganisms, especially prokaryontae and fungi. In particular, it is often desirable to limit the concentration of microorganisms on a particular area, or to completely free the area from microorganisms, or in some cases to completely free the area from a particular type or species of microorganisms. The aim is to achieve this in the broadest sense in the fields of medicine, medical technology and hygiene technology. For this purpose, antimicrobial materials and coatings, such as silver-coated wires for surgical use (see S. Silver, FEMS Microbiology Reviews (2003): pp.341-353) or copper-containing wires, are commonly used, for example, in the field of medical and hygiene products. Antifouling ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01N25/26A01N25/32A01N59/16A61L15/18A61L15/46A61L27/30A61L27/54A61L29/10A61L29/16A61L31/08A61L31/16C23C14/00C23C16/00A01N25/34A01N59/20B65D81/24B65D81/28
CPCA61L27/306A61L29/106A61L31/088A01N25/34A01N59/20A01N59/16A01N25/10A01N25/32A01N2300/00A01N25/26A61L15/18A61L15/26A61L15/44A61L27/34A61L27/54A61L29/085A61L29/16A61L31/10A61L31/16A61L2300/102A61L2300/104A61L2300/404A61L2420/02A61L2420/08
Inventor 迈克尔·瓦格纳克劳斯·迪特尔·维辛迪尔克·扎尔茨彼得·施泰因吕克
Owner BIO GATE AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com