New Bioactive Glass and Changes in Porosity during the Growth of a Carbonate Hydroxyapatite Layer on Glass Surfaces
The synthesis of a bioactive glass with a composition (in mole %) SiO2 (55), CaO (41), P2O5 (4) was carried out by the sol−gel method. The in vitro bioactivity of this glass was assessed by following the changes in surface composition and morphology after soaking in simulated body fluid (SBF) for se...
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| Veröffentlicht in: | Chemistry of materials 2000-04, Vol.12 (4), p.961-965 |
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| container_title | Chemistry of materials |
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| creator | Vallet-Regí, M Rámila, A |
| description | The synthesis of a bioactive glass with a composition (in mole %) SiO2 (55), CaO (41), P2O5 (4) was carried out by the sol−gel method. The in vitro bioactivity of this glass was assessed by following the changes in surface composition and morphology after soaking in simulated body fluid (SBF) for several periods. Also the porosity of the glass was studied by considering the changes of that porosity when a carbonate hydroxyapatite (CHA) layer grows on the glass surface. The glass synthesized in this work shows a high degree of porosity due to its elevated content in Ca(II), which is released from the glass to the media. This dilution of Ca2+, which gives rise to macropore enhancement together with the saturation of the media, leads to a fast growth of CHA on glass surface and pores. |
| doi_str_mv | 10.1021/cm991110b |
| format | Article |
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The in vitro bioactivity of this glass was assessed by following the changes in surface composition and morphology after soaking in simulated body fluid (SBF) for several periods. Also the porosity of the glass was studied by considering the changes of that porosity when a carbonate hydroxyapatite (CHA) layer grows on the glass surface. The glass synthesized in this work shows a high degree of porosity due to its elevated content in Ca(II), which is released from the glass to the media. This dilution of Ca2+, which gives rise to macropore enhancement together with the saturation of the media, leads to a fast growth of CHA on glass surface and pores.</description><identifier>ISSN: 0897-4756</identifier><identifier>EISSN: 1520-5002</identifier><identifier>DOI: 10.1021/cm991110b</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Biological and medical sciences ; Building materials. Ceramics. Glasses ; Chemical industry and chemicals ; Exact sciences and technology ; Glasses ; Medical sciences ; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) ; Structure, analysis, properties ; Technology. Biomaterials. Equipments. Material. 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Mater</addtitle><description>The synthesis of a bioactive glass with a composition (in mole %) SiO2 (55), CaO (41), P2O5 (4) was carried out by the sol−gel method. The in vitro bioactivity of this glass was assessed by following the changes in surface composition and morphology after soaking in simulated body fluid (SBF) for several periods. Also the porosity of the glass was studied by considering the changes of that porosity when a carbonate hydroxyapatite (CHA) layer grows on the glass surface. The glass synthesized in this work shows a high degree of porosity due to its elevated content in Ca(II), which is released from the glass to the media. This dilution of Ca2+, which gives rise to macropore enhancement together with the saturation of the media, leads to a fast growth of CHA on glass surface and pores.</description><subject>Applied sciences</subject><subject>Biological and medical sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Chemical industry and chemicals</subject><subject>Exact sciences and technology</subject><subject>Glasses</subject><subject>Medical sciences</subject><subject>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)</subject><subject>Structure, analysis, properties</subject><subject>Technology. Biomaterials. Equipments. Material. 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Instrumentation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vallet-Regí, M</creatorcontrib><creatorcontrib>Rámila, A</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Chemistry of materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vallet-Regí, M</au><au>Rámila, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New Bioactive Glass and Changes in Porosity during the Growth of a Carbonate Hydroxyapatite Layer on Glass Surfaces</atitle><jtitle>Chemistry of materials</jtitle><addtitle>Chem. Mater</addtitle><date>2000-04-17</date><risdate>2000</risdate><volume>12</volume><issue>4</issue><spage>961</spage><epage>965</epage><pages>961-965</pages><issn>0897-4756</issn><eissn>1520-5002</eissn><abstract>The synthesis of a bioactive glass with a composition (in mole %) SiO2 (55), CaO (41), P2O5 (4) was carried out by the sol−gel method. The in vitro bioactivity of this glass was assessed by following the changes in surface composition and morphology after soaking in simulated body fluid (SBF) for several periods. Also the porosity of the glass was studied by considering the changes of that porosity when a carbonate hydroxyapatite (CHA) layer grows on the glass surface. The glass synthesized in this work shows a high degree of porosity due to its elevated content in Ca(II), which is released from the glass to the media. 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| ispartof | Chemistry of materials, 2000-04, Vol.12 (4), p.961-965 |
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| source | ACS Publications |
| subjects | Applied sciences Biological and medical sciences Building materials. Ceramics. Glasses Chemical industry and chemicals Exact sciences and technology Glasses Medical sciences Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) Structure, analysis, properties Technology. Biomaterials. Equipments. Material. Instrumentation |
| title | New Bioactive Glass and Changes in Porosity during the Growth of a Carbonate Hydroxyapatite Layer on Glass Surfaces |
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