Biofilm Formation of Two Different Marine Bacteria on Modified PDMS Surfaces is Affected by Surface Roughness and Topography

Abstract Different strategies were tested to reduce biofilm formation of the model marine bacteria Cobetia marina and Marinobacter hydrocarbonoclasticus on cross-linked polydimethylsiloxane (PDMS) coated aluminum and cellulose acetate surfaces modified by addition of multi-walled carbon nanotubes (MWCNT) or exposure of the surfaces to bromine vapors in the presence and absence of UV irradiation. The three surface modifications explored led to important reductions in biofilm formation for the two marine bacteria, up to 30% in the case of exposure to $ Br_{2} $(g). Biofouling reduction could be correlated to surface properties in all cases through the introduction of a quantitative theoretical model based on an effective roughness parameter, Raeff, that accounted for the different morphological changes observed. The model considers the possibility of bacterial inclusion into large surface wells, as observed by AFM in the case of $ Br_{2} $(g) + UV light treatment. In addition, a linear relationship was observed between biofouling reduction and the Raeff effective roughness parameter..

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:80

Enthalten in:

Current microbiology - 80(2023), 8 vom: 25. Juni

Sprache:

Englisch

Beteiligte Personen:

Cagnola, Gonzalo N. [VerfasserIn]
Cabrera, J. Nicolas [VerfasserIn]
Negri, R. Martin [VerfasserIn]
D’Accorso, Norma B. [VerfasserIn]
Lizarraga, Leonardo [VerfasserIn]
Pettinari, M. Julia [VerfasserIn]

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BKL:

42.30$jMikrobiologie

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RVK Klassifikation

Anmerkungen:

© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

doi:

10.1007/s00284-023-03370-5

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2144096007

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