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Title: Particulate sol route hydroxyapatite thin Film-silk protein interface interactions
Authors: Özcan, Selçuk
Çiftçioğlu, Muhsin
Keywords: Film preparation
Vapor deposition
Thin films
Protein adsorption
Issue Date: 2010
Publisher: Gazi Üniversitesi
Source: Özcan, S., and Çiftçioğlu, M. (2010). Particulate sol route hydroxyapatite thin Film-silk protein interface interactions. Gazi University Journal of Science, 23(4), 475-485.
Abstract: Hydroxyapatite (HAp) thin film coatings were prepared on bioinert glass slides by a particulate sol method and the effects of intermediate silk fibroin and silk sericin coatings on the HAp film formation and surface topography were examined. The films prepared with smaller crushed particle sols had a higher agglomeration tendency during the drying consolidation step of the thin film formation, and contained agglomerates larger in number and size, which was demonstrated experimentally and in accordance with the DLVO theory. In the thin films prepared on intermediate sericin and fibroin films the number and size of agglomerates were decisively reduced, forming homogeneous films of predominantly primary particles, especially for the larger particle size sols. The regular surface electrostatic potential arrangements of the β-sheet structures of the sericin and fibroin, and of hydroxyapatite crystals, gave rise to the coulombic attraction driven surface energy minimization, enhancing the hydroxyapatite thin film formation process. The positive degree of cooperativity in the hydroxyapatite particle deposition on the silk protein coatings was disrupted by the particle agglomeration tendency.
ISSN: 1303-9709
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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