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Lack of association between a cationic protein and a cationic fluorosurfactant
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
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2007 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 23, no 2, 771-775 p.Article in journal (Refereed)
Abstract [en]

Surface tension, 19F and 1H NMR spectroscopy, and cryotransmission electron microscopy are used to characterize the state of association in aqueous solutions of a fluorosurfactant CF3(CF2)nSO2NH(CH2)3-4N(CH3)3 +I- (n ) 8, 6) with and without lysozyme added. In the absence of lysozyme, we find monomers, small aggregates, and large vesicles to coexist, with the individual fluorosurfactant molecules exchanging slowly (>1 ms) among those states. When both lysozyme and fluorosurfactant are present in the solution, they have no measurable influence on the physical state of the other. In contrast, a hydrogenated cationic surfactant with the same headgroup, hexadecyltrimethylammonium bromide, is shown to associate to lysozyme.

Place, publisher, year, edition, pages
2007. Vol. 23, no 2, 771-775 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27142OAI: oai:DiVA.org:ri-27142DiVA: diva2:1054146
Note
A1866Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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