title: Collagen coating on hydroxyapatite surfaces modified with organosilane by chemical vapor deposition method.
abstract: Type I collagen was coated onto the modified surfaces of hydroxyapatite (HAp) sintered body. The interfacial interaction between collagen and HAp in a nano-region was controlled by depositing the organosilane of n-octadecyltrimethoxysilane (ODS: -CH3) or aminopropyltriethoxysilane (APTS: -NH2) with a chemical vapor deposition method. The surfaces were elaborated by X-ray photoelectron spectroscopy, zeta-potential, and contact angle measurements; the Si and/or N peaks were detected, and the contact angles and surface energies were apparently different on the modified surfaces. The morphologies of collagen adsorbed on the surfaces of HAp and HAp deposited with APTS were similar, however that of the surface with ODS was apparently different, due to the hydrophobic interaction between the organic head group of -CH3 and residual groups of collagen.
authors: National Institute for Materials Science, Biomaterials Center, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan.
authors: Akira
authors: A
authors: Monkawa
authors: Toshiyuki
authors: T
authors: Ikoma
authors: Shunji
authors: S
authors: Yunoki
authors: Kazushi
authors: K
authors: Ohta
authors: Junzo
authors: J
authors: Tanaka
mesh_terms: D000327:Adsorption; D000818:Animals; D020099:Coated Materials, Biocompatible; D024042:Collagen Type I / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D036103:Nanotechnology; D017646:Organosilicon Compounds / Q000737:chemistry*; D013057:Spectrum Analysis; D013552:Swine; D014965:X-Rays
chemical_list: D020099:Coated Materials, Biocompatible; D024042:Collagen Type I; D017646:Organosilicon Compounds; D017886:Durapatite