Antifouling properties of oligo(lactose)-based self-assembled monolayers

Nugraha, RoniLinköpings universitet,Sensorvetenskap och Molekylfysik,Tekniska högskolan (author)

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]
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.

NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
NATURVETENSKAP Kemi hsv//swe
NATURAL SCIENCES Chemical Sciences hsv//eng
marine biofouling; oligo(lactose); self-assembled monolayer; Ulva linza; Navicula incerta; protein resistance

Finlay, John A.University of Birmingham, England (author)
Hill, SophieUniversity of Birmingham, England (author)
Fyrner, TimmyLinköpings universitet,Kemi,Tekniska högskolan(Swepub:liu)timfy80 (author)
Yandi, WetraLinköpings universitet,Molekylär fysik,Tekniska högskolan(Swepub:liu)wetya25 (author)
Callow, Maureen E.University of Birmingham, England (author)
Callow, James A.University of Birmingham, England (author)
Ederth, ThomasLinköpings universitet,Molekylär fysik,Tekniska högskolan(Swepub:liu)thoed88 (author)
Linköpings universitetSensorvetenskap och Molekylfysik (creator_code:org_t)

In:Biofouling (Print): Taylor andamp; Francis: STM, Behavioural Science and Public Health Titles31:1, s. 123-1340892-70141029-2454

By the author/editor: Nugraha, Roni; Finlay, John A.; Hill, Sophie; Fyrner, Timmy; Yandi, Wetra; Callow, Maureen ...; show more...; Callow, James A.; Ederth, Thomas; show less...

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