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Antifouling properties of oligo(lactose)-based self-assembled monolayers
Linköping University, Department of Physics, Chemistry and Biology, Sensor Science and Molecular Physics. Linköping University, The Institute of Technology.
University of Birmingham, England.
University of Birmingham, England.
Linköping University, Department of Physics, Chemistry and Biology, Chemistry. Linköping University, The Institute of Technology.
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2015 (English)In: Biofouling (Print), ISSN 0892-7014, E-ISSN 1029-2454, Vol. 31, no 1, 123-134 p.Article in journal (Refereed) Published
Abstract [en]

The antifouling (AF) properties of oligo(lactose)-based self-assembled monolayers (SAMs), using four different proteins, zoospores of the green alga Ulva linza and cells of the diatom Navicula incerta, were investigated. The SAM-forming alkylthiols, which contained 1, 2 or 3 lactose units, showed significant variation in AF properties, with no differences in wettability. Non-specific adsorption of albumin and pepsin was low on all surfaces. Adsorption of lysozyme and fibrinogen decreased with increasing number of lactose units in the SAM, in agreement with the generally observed phenomenon that thicker hydrated layers provide higher barriers to protein adsorption. Settlement of spores of U. linza followed an opposite trend, being greater on the bulkier, more hydrated SAMs. These SAMs are more ordered for the larger saccharide units, and it is therefore hypothesized that the degree of order, and differences in crystallinity or stiffness between the surfaces, is an important parameter regulating spore settlement on these surfaces.

Place, publisher, year, edition, pages
Taylor andamp; Francis: STM, Behavioural Science and Public Health Titles , 2015. Vol. 31, no 1, 123-134 p.
Keyword [en]
marine biofouling; oligo(lactose); self-assembled monolayer; Ulva linza; Navicula incerta; protein resistance
National Category
Physical Sciences Chemical Sciences
Identifiers
URN: urn:nbn:se:liu:diva-114588DOI: 10.1080/08927014.2014.1001841ISI: 000348531500011PubMedID: 25629533OAI: oai:DiVA.org:liu-114588DiVA: diva2:791443
Note

Funding Agencies|European Community [23797]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009-00971]; ONR (USA) [N0001-08-1-0010]

Available from: 2015-02-27 Created: 2015-02-26 Last updated: 2017-12-04

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