Electrochemical preparation of chitosan/hydroxyapatite composite coatings on titanium substrates.
Composite coatings containing brushite (CaHPO(4). 2H(2)O) and chitosan were prepared by electrochemical deposition. The brushite/chitosan composites were converted to hydroxyapatite/chitosan composites in aqueous solutions of sodium hydroxide. The coatings ranged from approximately 1 to 15% chitosan by weight. Qualitative assessment of the coatings showed adhesion significantly improved over that observed for electrodeposited coatings of pure HA.
Redepenning
Jody
J
Department of Chemistry, University of Nebraska-Lincoln, Hamilton Hall, Lincoln, Nebraska 68588-0304, USA. jredepen@unlserve.unl.edu
Venkataraman
Guhanand
G
Chen
Jun
J
Stafford
Nathan
N
D002130:Calcium Phosphates / Q000737:chemistry; D002686:Chitin / Q000031:analogs & derivatives* / Q000138:chemical synthesis*; D048271:Chitosan; D020099:Coated Materials, Biocompatible / Q000138:chemical synthesis*; D017886:Durapatite / Q000138:chemical synthesis*; D004563:Electrochemistry; D006358:Hot Temperature; D008855:Microscopy, Electron, Scanning; D008863:Microspheres; D013997:Time Factors; D014025:Titanium
D002130:Calcium Phosphates; D020099:Coated Materials, Biocompatible; D002686:Chitin; D048271:Chitosan; D017886:Durapatite; D014025:Titanium; C494366:calcium phosphate, dibasic, dihydrate