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Influence of polyelectrolyte multilayer properties on bacterial adhesion capacity
ID Kovačević, Davor (Author), ID Pratnekar, Rok (Author), ID Godič Torkar, Karmen (Author), ID Salopek, Jasmina (Author), ID Dražić, Goran (Author), ID Abram, Anže (Author), ID Bohinc, Klemen (Author)

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Abstract
Bacterial adhesion can be controlled by different material surface properties, such as surface charge, on which we concentrate in our study. We use a silica surface on which poly(allylamine hydrochloride)/sodium poly(4-styrenesulfonate) (PAH/PSS) polyelectrolyte multilayers were formed. The corresponding surface roughness and hydrophobicity were determined by atomic force microscopy and tensiometry. The surface charge was examined by the zeta potential measurements of silica particles covered with polyelectrolyte multilayers, whereby ionic strength and polyelectrolyte concentrations significantly influenced the build-up process. For adhesion experiments, we used the bacterium Pseudomonas aeruginosa. The extent of adhered bacteria on the surface was determined by scanning electron microscopy. The results showed that the extent of adhered bacteria mostly depends on the type of terminating polyelectrolyte layer, since relatively low differences in surface roughness and hydrophobicity were obtained. In the case of polyelectrolyte multilayers terminating with a positively charged layer, bacterial adhesion was more pronounced than in the case when the polyelectrolyte layer was negatively charged.

Language:English
Keywords:bacterial adhesion, Pseudomonas aeruginosa, polyelectrolyte multilayers, poly(allylamine hydrochloride), poly(4-styrenesulfonate), scanning electron microscopy, zeta potential
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:ZF - Faculty of Health Sciences
Publication status:Published
Publication version:Version of Record
Year:2016
Number of pages:12 str.
Numbering:Vol. 8, iss. 10, art. 345
PID:20.500.12556/RUL-131280 This link opens in a new window
UDC:53
ISSN on article:2073-4360
DOI:10.3390/polym8100345 This link opens in a new window
COBISS.SI-ID:29783591 This link opens in a new window
Publication date in RUL:24.09.2021
Views:711
Downloads:138
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Record is a part of a journal

Title:Polymers
Shortened title:Polymers
Publisher:Molecular Diversity Preservation International
ISSN:2073-4360
COBISS.SI-ID:517951257 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:01.10.2016

Projects

Funder:HRZZ - Croatian Science Foundation
Project number:IP-2014-09-6972
Name:Electrical charging of solid/aqueous electrolyte interfaces

Funder:Other - Other funder or multiple funders
Funding programme:Croatia
Name:Soft nanotechnology: Antibacterial properties of polyelectrolytecoated surfaces

Funder:ARRS - Slovenian Research Agency
Project number:P3-0388
Name:Mehanizmi varovanja zdravja

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