title: Structure and dissolution investigation of calcium-bismuth-borate glasses and vitroceramics containing silver.
abstract: Quaternary Ag(2)O-CaO-Bi(2)O(3)-B(2)O(3) glasses and glassceramics are investigated with regard to release behaviour and local structure. The dissolution behaviour in water and physiological serum shows that the cations are released rapidly or gradually and points out a multi-step process, generally characterised by higher rates in water than in physiological serum. The structural effect of silver addition to bismuth-borate glasses is observed from infrared spectroscopic data. The antibacterial activity of the investigated samples was tested on six bacterial media.
authors.affiliation: Babes-Bolyai University, Faculty of Physics, Cluj-Napoca, Romania. viosimon@phys.ubbcluj.ro
authors.forename: V
authors.initials: V
authors.lastname: Simon
authors.forename: M
authors.initials: M
authors.lastname: Spinu
authors.forename: R
authors.initials: R
authors.lastname: Stefan
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D001672:Biocompatible Materials / Q000737:chemistry* / Q000494:pharmacology; D001729:Bismuth / Q000737:chemistry; D001896:Boron Compounds / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry* / Q000494:pharmacology; D005898:Glass / Q000737:chemistry*; D006801:Humans; D066298:In Vitro Techniques; D008422:Materials Testing; D015394:Molecular Structure; D010087:Oxides / Q000737:chemistry; D018030:Silver Compounds / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D013057:Spectrum Analysis; D014965:X-Rays
chemical_list: D000900:Anti-Bacterial Agents; D001672:Biocompatible Materials; D001896:Boron Compounds; D017610:Calcium Compounds; D010087:Oxides; D018030:Silver Compounds; C042168:boron oxide; C040225:disilver oxide; C033301:bismuth oxide; C016538:lime; D001729:Bismuth