title: Growth of calcium phosphate on poling treated ferroelectric BaTiO3 ceramics.
abstract: Barium titanate (BaTiO3; BTO) is ferroelectric and piezoelectric after poling treatment. In this study, the bioactivity of BTO was investigated after a poling treatment by examining the formation of crystal growth on specimen surfaces in vitro. Negatively charged BTO surfaces showed calcium phosphate (Ca-P) crystal growth, while deposition of sodium chloride was observed on the positively charged BTO surfaces. After 30 days immersion in Eagle's MEM, the thickness of Ca-P crystal on negatively charged BTO surfaces increased to 0.8-0.9 microm. These data indicate that incorporating selectively polarized BTO on implant surfaces is a promising means for improving the bioactivity of implant materials.
authors.affiliation: Department of Dental Materials, Dental Materials Research Institute, College of Dentistry, Chonnam National University, Gwangju, South Korea. yjpark@chonnam.ac.kr
authors.forename: Yeong-Joon
authors.initials: YJ
authors.lastname: Park
authors.forename: Kyu-Seog
authors.initials: KS
authors.lastname: Hwang
authors.forename: Jong-Eun
authors.initials: JE
authors.lastname: Song
authors.forename: Joo L
authors.initials: JL
authors.lastname: Ong
authors.forename: H Ralph
authors.initials: HR
authors.lastname: Rawls
mesh_terms: D017609:Barium Compounds / Q000737:chemistry*; D001672:Biocompatible Materials; D002130:Calcium Phosphates / Q000378:metabolism*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D019736:Prostheses and Implants; D012965:Sodium Chloride / Q000378:metabolism; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013997:Time Factors; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D017609:Barium Compounds; D001672:Biocompatible Materials; D002130:Calcium Phosphates; C485828:alpha-tricalcium phosphate; C485830:tetracalcium phosphate; C024547:barium titanate(IV); D012965:Sodium Chloride; C485838:calcium phosphate, monobasic, anhydrous; C020243:calcium phosphate; D014025:Titanium; C485829:calcium phosphate, dibasic, anhydrous