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Updated: Aug 11, 2026

Development of Amelogenin-chitosan Hydrogel for In Vitro Enamel Regrowth with a Dense Interface
Published on: July 10, 2014
Self-assembly/aggregation behavior and adsorption of enamel matrix derivate protein to silica surfaces
Tobias J Halthur1, Anna Björklund, Ulla M Elofsson
1YKI, Institute for Surface Chemistry, Box 5607, SE-114 86 Stockholm, Sweden. tobias.halthur@surfchem.kth.se
Abstract:
Adsorption of the amelogein protein mixture enamel matrix derivate (EMD) to silica surfaces has been studied by in situ ellipsometry and quartz crystal microbalance with dissipation (QCM-D). The protein was found to adsorb as nanospheres in mono- or multilayers, depending on the concentration of "free" nanospheres available in solution. The concentration of free nanospheres is determined by the competitive processes of adsorption and rapid aggregation into microscopic particles, measured by dynamic light scattering (DLS). Multilayers could also be formed by sequential injections of fresh EMD solution. At higher temperature, an up to 6 times thicker gel-like film was formed on the substrate surface, and decreasing the pH lead to disruption of the multilayer/aggregate formation and a decreased amount adsorbed.
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