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doi:10.22028/D291-24704
Titel: | Antimicrobic low surface-free energy nanocomposite coatings |
VerfasserIn: | Becker-Willinger, Carsten Csögör, Zsuzsa Gerwann, Jochen Schmidt, Helmut K. |
Sprache: | Englisch |
Erscheinungsjahr: | 2002 |
Quelle: | Hygienic coatings : Brussels, Belgium, 8 - 9 July 2002 ; conference papers / [The First Global Conference Dedicated to Hygienic Coatings. The International Centre for Coatings Technology, Paint Research Association]. - Teddington, Middlesex : Paint Research Association, 2002, Paper 7 |
Kontrollierte Schlagwörter: | Nanopartikel Silberion Organisch-anorganischer Hybridwerkstoff Sol-Gel-Verfahren |
DDC-Sachgruppe: | 620 Ingenieurwissenschaften und Maschinenbau |
Dokumenttyp: | Konferenzbeitrag (in einem Konferenzband / InProceedings erschienener Beitrag) |
Abstract: | A new type of silver nanoparticles containing coating based on inorganic-organic hybrid materials has been developed by the sol-gel technique to achieve antimicrobic properties. The formation of an inactive biofilm layer, which can block the antimicrobic effect, was reduced by decreasing the surface-free energy of the coating. Ag+ ions as effective oligodynamic components are generated by Ag nanoparticles with a size between 5-10nm. The Ag nanoparticles are produced during the drying and curing process. The investigation of the long-time release behavior of Ag+ ions show that the coating has oligodynamic properties for at least several month. The antimicrobic effect of the coating has been proved by inoculation with Gram negative bacterium E.coli. A low surface-free energy of about 19,5mN/m could be achieved by using side chain perfluorinated organo alkoxy silanes, which upconcentrate at the coating surface by thermodynamical reasons. Compared with uncoated samples the low surface-free energy of the coating lead to a reduction of biofilm adhesion of about 95%. |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291-scidok-30281 hdl:20.500.11880/24760 http://dx.doi.org/10.22028/D291-24704 |
ISBN: | 0-9543164-0-1 |
Datum des Eintrags: | 11-Nov-2010 |
Fakultät: | SE - Sonstige Einrichtungen |
Fachrichtung: | SE - INM Leibniz-Institut für Neue Materialien |
Sammlung: | INM SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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sm200205.pdf | 626,04 kB | Adobe PDF | Öffnen/Anzeigen |
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