title: Confocal Raman and electronic microscopy studies on the topotactic conversion of calcium carbonate from Pomacea lineate shells into hydroxyapatite bioceramic materials in phosphate media.
abstract: Conversion of Pomacea lineate shells into hydroxyapatite (HA) bioceramic materials was investigated by their in vitro treatment with phosphate solutions, at room temperature. Confocal Raman microscopy revealed that the conversion proceeds at distinct rates through the nacreous or periostracum sides of the shell. The conversion can be accelerated using powdered samples, yielding biocompatible materials of great interest in biomedicine.
authors.affiliation: Instituto de Química, Universidade de São Paulo, São Paulo, Brazil. moranelli@gmail.com
authors.forename: S M
authors.initials: SM
authors.lastname: dePaula
authors.forename: M F G
authors.initials: MF
authors.lastname: Huila
authors.forename: K
authors.initials: K
authors.lastname: Araki
authors.forename: H E
authors.initials: HE
authors.lastname: Toma
mesh_terms: D000818:Animals; D002119:Calcium Carbonate / Q000378:metabolism*; D017886:Durapatite / Q000378:metabolism*; D049851:Gastropoda / Q000737:chemistry* / Q000378:metabolism; D018613:Microscopy, Confocal; D008854:Microscopy, Electron; D010710:Phosphates / Q000378:metabolism*; D013059:Spectrum Analysis, Raman
chemical_list: D010710:Phosphates; D017886:Durapatite; D002119:Calcium Carbonate