In vitro studies of bioactive glass/polyhydroxybutyrate composites

被引：6

作者：

Paiva, André Oliveira ^{[1
]}

Duarte, Maria Gabriela ^{[2
]}

Fernandes, Maria Helena Vaz ^{[2
]}

Gil, Maria Helena ^{[3
]}

Costa, Necésio Gomes ^{[4
]}

机构：

[1] Science Institute, Federal University of Itajubá

[2] Department of Ceramics and Glass Engineering, University of Aveiro

[3] Department of Chemical Engineering, University of Coimbra

[4] Mechanical Engineering Institute, Federal University of Itajubá

来源：

Materials Research | 2006年 / 9卷 / 04期

关键词：

Bioactive glasses; Composites and bioactivity; Polyhydroxybutyrate;

D O I：

10.1590/S1516-14392006000400013

中图分类号：

学科分类号：

摘要：

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.

引用

页码：417 / 423

页数：6

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