期刊
SOLID STATE SCIENCES
卷 6, 期 11, 页码 1295-1300出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2004.07.026
关键词
mesoporous; bioactivity; porosity; apatite layer
Mesoporous MCM-41 materials seem adequate for their use as bioactive materials since they exhibit high specific surfaces constituted by siloxane and silanol groups, and present a high porosity, which are important conditions for bioactivity. Even though, no signs of bioactivity are shown after 2 months of in vitro assays, revealing the need of some other element such as cations that can act as defect generators, promoting the apatite layer nucleation. The addition of a small amount of glass to a MCM-41 material induce the formation of an apatite-like layer starting from the glass surface, covering after 7 days of assay the whole surface of the biphasic material MCM-41-glass. (C) 2004 Elsevier SAS. All rights reserved.
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