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Covalent attachment of a bioactive hyperbranched polymeric layer to titanium surface for the biomimetic growth of calcium phosphates

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National Technical University of Athens   

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Covalent attachment of a bioactive hyperbranched polymeric layer to titanium surface for the biomimetic growth of calcium phosphates (EN)
Tsiourvas, D (EN)
Mastrogianni, E (EN)
Diplas, S (EN)
Arkas, M (EN)
Tsetsekou, A (EN)
journalArticle (EN)
2014-03-01T01:35:28Z
2011 (EN)
This work is investigating the chemical grafting on Ti surface of a polymer/calcium phosphate coating of improved adhesion for enhanced bioactivity. For this purpose, a whole new methodology was developed based on covalently attaching a hyperbranched poly(ethylene imine) layer on Ti surface able to promote calcium phosphate formation in a next deposition stage. This was achieved through an intermediate surface silanization step. The research included optimization both of the reaction conditions for covalently grafting the intermediate organosilicon and the subsequent hyperbranched poly(ethylene imine) layers, as well as of the conditions for the mechanical and chemical pretreatment of Ti surface before coating. The reaction steps were monitored employing FTIR and XPS analyses, whereas the surface morphology and structure of the successive coating layers were studied by SEM combined with EDS. The analysis confirmed the successful grafting of the hybrid layer which demonstrated very good ability for hydroxyapatite growth in simulated body fluid. © 2010 The Author(s). (EN)
Engineering, Biomedical (EN)
Materials Science, Biomaterials (EN)
Deposition stages (EN)
simulation (EN)
Chemical pre-treatment (EN)
Biomimetic Materials (EN)
Hydroxyapatite (EN)
Biomimetic growth (EN)
Surface Morphology (EN)
Biomimetics (EN)
Surface Properties (EN)
Poly Ethylene Imine (EN)
Phosphate coatings (EN)
Titanium (EN)
Covalent attachment (EN)
Reaction steps (EN)
Grafting (chemical) (EN)
Polymers (EN)
Protective coatings (EN)
scanning electron microscopy (EN)
hydroxyapatite (EN)
Calcium phosphate formation (EN)
Calcium phosphate (EN)
Materials Testing (EN)
Coated Materials, Biocompatible (EN)
article (EN)
biomimetic material (EN)
body fluid (EN)
Simulated Body Fluid (EN)
Hydrogen Bonding (EN)
Surface reactions (EN)
Models, Biological (EN)
SEM (EN)
polyethyleneimine (EN)
Chemical grafting (EN)
Hyperbranched (EN)
titanium (EN)
Ethylene (EN)
Nitrogen compounds (EN)
Polymeric layers (EN)
Spectroscopy, Fourier Transform Infrared (EN)
Biomaterials (EN)
Calcium Phosphates (EN)
FTIR (EN)
Spectrometry, X-Ray Emission (EN)
XPS analysis (EN)
Surface silanization (EN)
material coating (EN)
Coating layer (EN)
priority journal (EN)
Simulated body fluids (EN)
infrared spectroscopy (EN)
Functional polymers (EN)
Polyethyleneimine (EN)
Reaction intermediates (EN)
Microscopy, Electron, Scanning (EN)
Reaction conditions (EN)
Hybrid layer (EN)
Surface morphology (EN)
Crystallization (EN)
Titanium surfaces (EN)
Poly(ethyleneimine) (EN)
Organosilicones (EN)
Grafts (EN)
controlled study (EN)
calcium phosphate (EN)
X ray photoelectron spectroscopy (EN)
Body Fluids (EN)
Calcium Phosphate (EN)
Journal of Materials Science: Materials in Medicine (EN)
English
SPRINGER (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
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