Antibacterial and bioactive silver-containing Na sub(2)O times CaO times 2SiO sub(2) glass prepared by sol-gel method

The antibacterial effect of addition of silver oxide to Na sub(2)O times CaO times 2SiO sub(2) glass have been studied. Silver containing and silver free Na sub(2)O times CaO times 2SiO sub(2) glasses have been prepared by sol-gel synthesis using tetramethil orthosilicate, sodium ethoxide, calcium n...

Full description

Saved in:
Bibliographic Details
Published inJournal of materials science. Materials in medicine Vol. 15; no. 7; pp. 831 - 837
Main Authors Catauro, M, Raucci, M G, de Gaetano, F, Marotta, A
Format Journal Article
LanguageEnglish
Published 01.07.2004
Subjects
Escherichia coli
Streptococcus mutans
Online AccessGet full text

Cover

More Information
Summary:The antibacterial effect of addition of silver oxide to Na sub(2)O times CaO times 2SiO sub(2) glass have been studied. Silver containing and silver free Na sub(2)O times CaO times 2SiO sub(2) glasses have been prepared by sol-gel synthesis using tetramethil orthosilicate, sodium ethoxide, calcium nitrate tetrahydrate and silver nitrate as starting materials and methyl ethyl ketone as solvent. The gel was examined by differential thermal analysis, thermo gravimetric analysis, FTIR spectroscopy and X-ray diffraction analysis. Antibacterial and bioactive tests on gel glass powders, obtained after a heat treatment of 2 h at 600 degree C of the dried gel, were carried out. High antimicrobial effects of samples against Escherichia coli and Streptococcus mutans were found. FTIR measurements and SEM micrographs have ascertained the formation of a hydroxyapatite layer on the surface of samples soaked in a simulated body fluid for different times.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ObjectType-Article-2
ObjectType-Feature-1
ISSN:0957-4530
DOI:10.1023/B:JMSM.0000032825.51052.00