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Mechanical properties of a mature biofilm from a wastewater system : from microscale to macroscale level (CROSBI ID 224033)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Safari, Ashkan ; Tuković, Željko ; Walter, Maik ; Casey, Eoin ; Ivanković, Alojz Mechanical properties of a mature biofilm from a wastewater system : from microscale to macroscale level // Biofouling, 31 (2016), 8; 651-664. doi: 10.1080/08927014.2015.1075981

Podaci o odgovornosti

Safari, Ashkan ; Tuković, Željko ; Walter, Maik ; Casey, Eoin ; Ivanković, Alojz

engleski

Mechanical properties of a mature biofilm from a wastewater system : from microscale to macroscale level

A fundamental understanding of biofilm mechanical stability is critical in order to describe detachment and develop biofouling control strategies. It is thus important to characterise the elastic deformation and flow behaviour of the biofilm under different modes of applied force. In this study, the mechanical properties of a mature wastewater biofilm were investigated with methods including macroscale compression and microscale indentation using atomic force microscopy (AFM). The mature biofilm was found to be mechanically isotropic at the macroscale level as its mechanical properties did not depend on the scales and modes of loading. However, the biofilm showed a tendency for mechanical inhomogeneity at the microscale level as indentation progressed deeper into the matrix. Moreover, it was observed that the adhesion force had a significant influence on the elastic properties of the biofilm at the surface, subjected to microscale tensile loading. These results are expected to inform a damage-based model for biofilm detachment.

Atomic force spectroscopy; biofilm; elastic modulus; macroscale mechanical testing; viscoelastic properties

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Podaci o izdanju

31 (8)

2016.

651-664

objavljeno

0892-7014

10.1080/08927014.2015.1075981

Povezanost rada

Strojarstvo, Biologija

Poveznice
Indeksiranost