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Protein-coated nanostructured surfaces affect the adhesion of Escherichia coli

Kallas, Pawel; Valen, Håkon; Hulander, Mats; Gadegaard, Nikolaj; Stormonth-Darling, John; O'Reilly, Padraic; Thiede, Bernd; Andersson, Martin; Haugen, Håvard Jostein
Peer reviewed, Journal article
Accepted version
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URI
https://hdl.handle.net/11250/3008825
Date
2022
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Original version
10.1039/D2NR00976E.
Abstract
Developing new implant surfaces with anti-adhesion bacterial properties used for medical devices remains a challenge. Here we describe a novel study investigating nanotopography influences on bacterial adhesion on surfaces with controlled interspatial nanopillars distances. Surfaces were coated with proteins (fibrinogen, collagen, serum and saliva) prior to E. coli-WT adhesion under flow conditions. PiFM provided chemical mapping and showed that proteins adsorbed both between and onto the nanopillars with a preference to areas between the nanopillars. E. coli-WT adhered least to protein-coated areas with low surface nanopillar coverage, most to surfaces coated with saliva, while human serum led to the lowest adhesion. Protein-coated nanostructured surfaces affected the adhesion of E. coli-WT. Abstract text goes here.
Journal
Nanoscale

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