ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Factors controlling the antibacterial ability of three bioactive glasses were studied bycomparing the changes in the SBF during immersion of the glasses with their response to fourmicroorganisms. After immersion of 100 mg/ml fine powder (〈45μm) of the glasses in the SBF for1, 2, 4, 8, 16, 27 and 48 hours, the immersion solutions were filtered and the pH in the bulk solutionwas measured. Ionic concentrations of Na, K, Ca, Mg, P and Si ions in the immersion solutionswere determined by ICP-OES. The antibacterial activity of the glasses showed good correlationwith the changes of the pH values in the SBF solutions. No correlation was found between the ionicconcentration and the antibacterial ability of the three glasses against the four testedmicroorganisms. The results suggest that, the antimicrobial effect of the glass powder against themicroorganisms tested is mostly dependent on the increase of the pH in the solution to valuesdetrimental for the bacteria growth
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.173.pdf
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