The bactericidal activity of glutaraldehyde‐impregnated polyurethane
| Autor: | Elaine Allan, Ivan P. Parkin, Alexander J. MacRobert, Sandeep K. Sehmi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Biocide
Staphylococcus aureus Materials science polymer Polyurethanes 02 engineering and technology Microbial Sensitivity Tests 010402 general chemistry medicine.disease_cause 01 natural sciences Microbiology chemistry.chemical_compound Polymer chemistry Materials Testing medicine Escherichia coli Polyurethane Original Research chemistry.chemical_classification Cross Infection hospital‐acquired infections Chemical modification Polymer biocide 021001 nanoscience & nanotechnology 0104 chemical sciences Anti-Bacterial Agents Antibacterial chemistry Polymerization Glutaral glutaraldehyde Glutaraldehyde 0210 nano-technology Antibacterial activity Nuclear chemistry Disinfectants |
| Zdroj: | MicrobiologyOpen |
| ISSN: | 2045-8827 |
| Popis: | Although glutaraldehyde is known to be bactericidal in solution, its potential use to create novel antibacterial polymers suitable for use in healthcare environments has not been evaluated. Here, novel materials were prepared in which glutaraldehyde was either incorporated into polyurethane using a simple “swell‐encapsulation‐shrink” method (hereafter referred to as “glutaraldehyde‐impregnated polyurethane”), or simply applied to the polymer surface (hereafter referred to as “glutaraldehyde‐coated polyurethane”). The antibacterial activity of glutaraldehyde‐impregnated and glutaraldehyde‐coated polyurethane samples was tested against Escherichia coli and Staphylococcus aureus. Glutaraldehyde‐impregnated polyurethane resulted in a 99.9% reduction in the numbers of E. coli within 2 h and a similar reduction of S. aureus within 1 h, whereas only a minimal reduction in bacterial numbers was observed when the biocide was bound to the polymer surface. After 15 days, however, the bactericidal activity of the impregnated material was substantially reduced presumably due to polymerization of glutaraldehyde. Thus, although glutaraldehyde retains antibacterial activity when impregnated into polyurethane, activity is not maintained for extended periods of time. Future work should examine the potential of chemical modification of glutaraldehyde and/or polyurethane to improve the useful lifespan of this novel antibacterial polymer. |
| Databáze: | OpenAIRE |
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