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Immobilization of enamel matrix derivate protein onto polypeptide multilayers. Comparative in situ measurements using ellipsometry, quartz crystal microbalance with dissipation, and dual polarization interferometry
YKI – Ytkemiska institutet.
YKI – Ytkemiska institutet.
2006 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 22, 11065-11071 p.Article in journal (Refereed)
Abstract [en]

The buildup of biodegradable poly(l-glutamic acid) (PGA) and poly(l-lysine) (PLL) multilayers on silica and titanium surfaces and the immobilization of Enamel Matrix Derivate protein (EMD) was followed by utilizing in situ using ellipsometry, Quartz Crystal Microbalance with Dissipation (QCM-D), and Dual Polarization Interferometry (DPI). The use of the relatively new DPI technique validated earlier published ellipsometry measurements of the PLL/PGA polypeptide films. The hydrophobic aggregating EMD protein was successfully immobilized both on top of as well as within the multilayer structures at pH 5.0. DPI measurements further indicated that the immobilization of EMD is influenced by the flow-pattern during adsorption. The formed polypeptide/EMD multilayer films are of interest since it is known that EMD is able to trigger cell response and induce biomineralization. The multilayer films thus have potential to be useful as bioactive and biodegradable coatings for future dental implants.

Place, publisher, year, edition, pages
2006. Vol. 22, 11065-11071 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27156OAI: oai:DiVA.org:ri-27156DiVA: diva2:1054160
Note
A1834Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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