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Scanning near-field IR microscopy of proteins in lipid bilayers
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Photochemistry and Molecular Science, Molecular Biomimetics.
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2011 (English)In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 13, no 48, 21432-21436 p.Article in journal (Refereed) Published
Abstract [en]

We use infrared near-field microscopy to chemically map the morphology of biological matrices. The investigated sample is built up from surface-tethered membrane proteins (cytochrome c oxidase) reconstituted in a lipid bilayer. We have carried out infrared near-field measurements in the frequency range between 1600 and 1800 cm(-1). By simultaneously recording the topography and chemical fingerprint of the protein-tethered lipid bilayer with a lateral resolution of 80 nm x 80 nm, we were able to probe locally the chemical signature of this membrane and to provide a local map of its surface morphology.

Place, publisher, year, edition, pages
2011. Vol. 13, no 48, 21432-21436 p.
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Natural Sciences
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URN: urn:nbn:se:uu:diva-166103DOI: 10.1039/c1cp21512dISI: 000297560200029OAI: oai:DiVA.org:uu-166103DiVA: diva2:475586
Available from: 2012-01-11 Created: 2012-01-10 Last updated: 2017-12-08Bibliographically approved

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