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Human Saliva Forms a Complex Film Structure on Alumina Surfaces
Malmö högskola, Faculty of Health and Society (HS).ORCID iD: 0000-0003-0392-3540
Malmö högskola, Faculty of Health and Society (HS).
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2007 (English)In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 8, no 1, p. 65-69Article in journal (Refereed) Published
Abstract [en]

Films formed from saliva on surfaces are important for maintenance of oral health and integrity by protection against chemical and/or biological agents. The aim of the present study was to investigate adsorbed amounts, thickness and the structure of films formed from human whole saliva on alumina surfaces by means of in situ ellipsometry, neutron reflectivity and atomic force microscopy. Alumina (Al2O3, synthetic sapphire) is a relevant and interesting substrate for saliva adsorption studies as it has an isoelectric point close to that of tooth enamel. The results showed that saliva adsorbs rapidly on alumina. The film could be modelled in two layers: an inner and dense thin region which forms a uniform layer, and an outer, more diffuse and thicker region that protrudes towards the bulk of the solution. The film morphology described a uniformly covering dense layer and a second outer layer containing polydisperse adsorbed macromolecules or aggregates.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2007. Vol. 8, no 1, p. 65-69
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Physical Chemistry
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URN: urn:nbn:se:mau:diva-14644DOI: 10.1021/bm060492tISI: 000243337600009PubMedID: 17206789Scopus ID: 2-s2.0-33846426052Local ID: 4475OAI: oai:DiVA.org:mau-14644DiVA, id: diva2:1418165
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2024-02-05Bibliographically approved

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Cárdenas, MaritéArnebrant, ThomasLindh, Liselott

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