Polyethylene compounds with antimicrobial surface properties
| Autor: | Wolfgang Kern, Gerhard Seyfriedsberger, Karl Rametsteiner |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Organic Chemistry General Physics and Astronomy Polymer Polyethylene Antimicrobial Methacrylate Linear low-density polyethylene chemistry.chemical_compound chemistry Polymer chemistry Materials Chemistry Zeta potential Antimicrobial surface Polymer blend Nuclear chemistry |
| Zdroj: | European Polymer Journal. 42:3383-3389 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/j.eurpolymj.2006.07.026 |
| Popis: | The present study aims at antimicrobial polyethylene surfaces. To achieve this, LLDPE was compounded with the polymeric biocide poly(2- tert -butylaminoethyl) methacrylate TBAM (bulk modification with 1.5–5.0 wt.% of TBAM). Surfaces of these polymer compounds were then subjected to microbial assays. Using standard methods the colony forming units (CFU) for Escherichia coli and Staphylococcus aureus were determined on these surfaces. In all cases, polyethylene surfaces with highly antimicrobial properties were achieved. An average reduction of 10 4 CFU ml −1 compared to neat LLDPE was achieved. The surfaces of these LLDPE/TBAM compounds were assessed by electrokinetic (zeta potential) measurements. The results indicate a relation between the antimicrobial activity and the zeta-potential of the polymer compounds. Moreover, the antimicrobial compounds were investigated towards biofilm formation. Compared to pristine LLDPE, the surfaces of the polymer compounds showed less adhering biofilm after a testing period of 16 weeks. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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