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Biotin selective polymer nano-films
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2014 (English)In: Journal of Nanobiotechnology, ISSN 1477-3155, E-ISSN 1477-3155, Vol. 12, 8- p.Article in journal (Refereed) Published
Abstract [en]

Background: The interaction between biotin and avidin is utilized in a wide range of assay and diagnostic systems. A robust material capable of binding biotin should offer scope in the development of reusable assay materials and biosensor recognition elements. Results: Biotin-selective thin (3-5 nm) films have been fabricated on hexadecanethiol self assembled monolayer (SAM) coated Au/quartz resonators. The films were prepared based upon a molecular imprinting strategy where N, N'-methylenebisacrylamide and 2-acrylamido-2-methylpropanesulfonic acid were copolymerized and grafted to the SAM-coated surface in the presence of biotin methyl ester using photoinitiation with physisorbed benzophenone. The biotinyl moiety selectivity of the resonators efficiently differentiated biotinylated peptidic or carbohydrate structures from their native counterparts. Conclusions: Molecularly imprinted ultra thin films can be used for the selective recognition of biotinylated structures in a quartz crystal microbalance sensing platform. These films are stable for periods of at least a month. This strategy should prove of interest for use in other sensing and assay systems.

Place, publisher, year, edition, pages
2014. Vol. 12, 8- p.
Keyword [en]
Molecularly imprinted polymer, Biotinylated compounds, Photoinitiated graft co-polymerization, Quartz crystal microbalance (QCM) sensors, Sandwich-casting method
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-225097DOI: 10.1186/1477-3155-12-8ISI: 000335075000001OAI: oai:DiVA.org:uu-225097DiVA: diva2:719930
Available from: 2014-05-27 Created: 2014-05-27 Last updated: 2017-12-05Bibliographically approved

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