Evaluation of a bioluminescence method, contact angle measurements and topography for testing the cleanability of plastic surfaces under laboratory conditions
| Autor: | I. Redsven, T. Ojala-Paloposki, Hanna-Riitta Kymäläinen, Mikko Hautala, Risto Kuisma, Anna-Maija Sjöberg, E. Pesonen-Leinonen |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
010304 chemical physics General Physics and Astronomy Mineralogy Surfaces and Interfaces General Chemistry 010501 environmental sciences Condensed Matter Physics 01 natural sciences Cleanability Surfaces Coatings and Films Contact angle Floor covering Laboratory test 0103 physical sciences Screening method Surface structure Bioluminescence Profilometer Composite material 0105 earth and related environmental sciences |
| Zdroj: | Applied Surface Science. 253:5536-5543 |
| ISSN: | 0169-4332 |
| Popis: | Detection of adenosine triphosphate (ATP) by bioluminescence is used, for instance, in the food industry and in hospitals to assess the hygiene status of surfaces. The aim of this laboratory study was to investigate the feasibility of the ATP method for estimating the cleanability of resilient floor coverings from biological soil. The surfaces were worn using a Soiling and Wearing Drum Tester, and soiled and cleaned with an Erichsen Washability and Scrubbing Resistance Tester. In the laboratory test carried out with the bioluminescence method, most of the new and worn floor coverings that were biologically soiled were cleaned efficiently. According to this study, the semiquantitative ATP screening method can be used for hygiene monitoring of flooring materials. No correlation was found between cleanability and contact angles or surface topography measured using a profilometer. However, by revealing local irregularities and damage on surfaces, scanning electron micrographs appeared useful in explaining differences in cleanability. |
| Databáze: | OpenAIRE |
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