title: The effect of magnetic field on electrochemically deposited calcium phosphate/collagen coatings.
abstract: Nanostructured calcium phosphate/collagen (CaP/COL) coatings were deposited on the carbon/carbon (C/C) composites through electrochemical deposition (ECD) under magnetic field. The effect of magnetic fields with different orientations on the morphology and composition was investigated. Both the morphology and composition of the coatings could be altered by superimposed magnetic field. Under zero magnetic field and magnetic field, three-dimensional network structure consisting of collagen fibers and CaP were formed on the C/C substrate. The applied magnetic field in the electric field helped to form nanostructured and plate-like CaP on collagen fibers. For the ECD under magnetic field, the Ca/P molar ratio of the coatings was lower than the one under B=0. This may be contributed to the decreased electrical resistance or the increased electrical conductivity of electrolyte solutions under magnetic field. The nanosized CaP/COL coatings exhibited the similar morphology to the human bone and could present excellent cell bioactivity and osteoblast functions.
authors.affiliation: College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an Shaanxi, China.
authors.forename: Xueni
authors.initials: X
authors.lastname: Zhao
authors.affiliation: College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an Shaanxi, China.
authors.forename: Jianpeng
authors.initials: J
authors.lastname: He
authors.affiliation: College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an Shaanxi, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an Shaanxi, China.
authors.forename: Xudong
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an Shaanxi, China.
authors.forename: Wanying
authors.initials: W
authors.lastname: Wang
mesh_terms: D018786:Bone Substitutes / Q000138:chemical synthesis* / Q000528:radiation effects; D002130:Calcium Phosphates / Q000737:chemistry*; D020099:Coated Materials, Biocompatible / Q000138:chemical synthesis* / Q000528:radiation effects; D003094:Collagen / Q000737:chemistry*; D004553:Electric Conductivity; D004595:Electroplating / Q000379:methods*; D060526:Magnetic Fields; D008422:Materials Testing; D053758:Nanoparticles / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure
chemical_list: D018786:Bone Substitutes; D002130:Calcium Phosphates; D020099:Coated Materials, Biocompatible; D003094:Collagen; C020243:calcium phosphate
keywords: Electrochemical deposition; carbon/carbon composites; coating; collagen; magnetic field