Characterization of ZnO substituted 45S5 Bioactive Glasses and Glass - Ceramics

Ankesh Kumar Srivastava, Ram Pyare

Abstract


ZnO substituted 45S5 bioactive - glasses and glass - ceramics were prepared. In vitro bioactivity of bioactive glasses and glass - ceramics, before and after exposed to simulated body fluid (SBF) solution for different time periods, were investigated by fourier transform infrared (FTIR) reflectance spectrometer with measuring the pH and the concentrations of silicon, sodium, calcium, phosphorus and zinc ions in SBF solution. The density, micro hardness and flexural strength of bioactive glasses and glass - ceramics were measured. Experimental results show that in vitro bioactivity nearly remains same by doping 1% of ZnO by weight, but after that as well as ZnO content increases in vitro bioactivity decreases. Crystallization of bioactive glasses decreases in vitro bioactivity. The density, micro hardness and flexural strength of bioactive glass - ceramics are higher than their respective bioactive glasses and these are also increasing with the increase of ZnO content.


Full Text: PDF DOI: 10.5539/jmsr.v1n2p207

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

Journal of Materials Science Research   ISSN 1927-0585 (Print)   ISSN 1927-0593 (Online)

Copyright © Canadian Center of Science and Education

To make sure that you can receive messages from us, please add the 'ccsenet.org' domain to your e-mail 'safe list'. If you do not receive e-mail in your 'inbox', check your 'bulk mail' or 'junk mail' folders.

------------------------------------------------------------------------------------------------------------------------------

images_120. proquest_logo_120 doaj_logo_new_120