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https://hdl.handle.net/10316/110905
Title: | In Vitro studies of bioactive glass/polyhydroxybutyrate composites | Authors: | Paiva, André Oliveira Duarte, Maria Gabriela Fernandes, Maria Helena Vaz Gil, Maria Helena Costa, Necésio Gomes |
Keywords: | bioactive glasses; polyhydroxybutyrate; composites and bioactivity | Issue Date: | 2006 | Publisher: | Universidade Federal de Sao Carlos | Project: | CAPES | metadata.degois.publication.title: | Materials Research | metadata.degois.publication.volume: | 9 | metadata.degois.publication.issue: | 4 | Abstract: | Bioactive materials can help bone reparation and regeneration by offering support to bone growth. In vitro studies of bioactive glass/polyhydroxybutyrate composites were carried out to evaluate the influence of the composition on the bioactivity through the presence of calcium phosphate (Ca-P) on the layer formed when the substrates were immerse in simulated body fluid (SBF). The in vitro tests were carried out by soaking the composites bioactive glass/polyhydroxybutyrate 30/70 and 40/60 in SBF. The surface of the composites was analyzed by Scanning Electron Microscopy (SEM) with Energy Dispersive Spectroscopy (EDS) and also via x ray Diffraction (XRD). The solutions were analyzed by Inductively Couple Plasma (ICP). SEM images show a formation of a Ca-P rich layer on surface of composites. XRD results characterized the layer as calcium hydrogen phosphate. Ca/P ratios found via EDS results show a value close to 1.67. According to ICP results, the Ca e P ions are from SBF. | URI: | https://hdl.handle.net/10316/110905 | ISSN: | 1516-1439 | DOI: | 10.1590/S1516-14392006000400013 | Rights: | openAccess |
Appears in Collections: | FCTUC Eng.Química - Artigos em Revistas Internacionais |
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