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http://hdl.handle.net/10773/9380
Title: | A novel hybrid material with calcium and strontium release capability |
Author: | Castro, António Almeida, José Carlos Salvado, Isabel Miranda Margaça, Fernanda Fernandes, Maria Helena |
Keywords: | Sol-gel preparation Biomaterials Electron Microscopy Microstructure FTIR |
Issue Date: | 1-Dec-2012 |
Publisher: | Elsevier |
Abstract: | The preparation of PDMS–TEOS–CaO hybrid materials by sol–gel techniques has been widely described in previous works. Calcium nitrate is the most common source of calcium used in these preparations. However, to remove possible toxic nitrate by-products a thermal treatment is necessary at temperatures above 500 1C, which leads to the degradation of the polymeric components of the hybrids. Strontium has already shown some promising results in the therapeutic area, being used in cases of osteoporosis and low bone density. In this study a new potential bioactive hybrid material was prepared, by sol–gel techniques, using calcium acetate as a novel calcium source. Also, for the first time, incorporation of strontium in a PDMS–TEOS hybrid system was evaluated. Samples were characterized before and after immersion in Kokubo’s Simulated Body Fluid (SBF) by SEM, EDS, ICP and FT-IR spectroscopy. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/9380 |
DOI: | 10.1016/j.matlet.2012.08.022 |
ISSN: | 0167-577X |
Appears in Collections: | CICECO - Artigos DEMaC - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Accepted Version - Final.pdf | Versão post-print do artigo | 1.18 MB | Adobe PDF | View/Open |
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