Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 340966
Title Characterization of the surface of protein-adsorbed dental materials by wetting and streaming potential measurements
Author(s) Matsumura, H.; Kawasaki, K.; Okumura, N.; Kambara, M.; Norde, W.
Source Colloids and Surfaces. B: Biointerfaces 32 (2003)2. - ISSN 0927-7765 - p. 97 - 103.
Department(s) Physical Chemistry and Colloid Science
Publication type Refereed Article in a scientific journal
Publication year 2003
Keyword(s) in-vitro - dynamic method - biofilm - enamel - hydroxyapatite - interfaces - adsorption
Abstract In this study we have elucidated the water-wettability and the electrokinetic surface potential of protein-covered dental materials. The proteins used here as typical proteins were human serum albumin and lysozyme from hen*s egg. The wettability (hydrophobicity/hydrophilicity) and the surface potential may dominate bacterial adhesion on the tooth materials and hence influence their biological activity. The artificial tooth materials we investigated were platinum-gold alloy, porcelain and dental resin. Hydroxyapatite was chosen as a reference reflecting natural tooth surface. The wetting was measured by the dropping time method of a thin liquid film along the surface of a protein-covered solid plate sample. The zeta potential was derived from the streaming potential invoked by flowing an electrolyte solution between two parallel sample plates. A variety of surface properties have been found for different combinations of protein and dental material.
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