...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Hydrophobicity, surface tension, and zeta potential measurements of glass-reinforced hydroxyapatite composites.
【24h】

Hydrophobicity, surface tension, and zeta potential measurements of glass-reinforced hydroxyapatite composites.

机译：玻璃增强羟基磷灰石复合材料的疏水性，表面张力和ζ电位测量。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wettability and zeta potential studies were performed to characterize the hydrophobicity, surface tension, and surface charge of P2O5-glass-reinforced hydroxyapatite composites. Quantitative phase analysis was performed by the Rietveld method using GSAS software applied to X-ray diffractograms. Surface charge was assessed by zeta potential measurements. Protein adsorption studies were performed using vitronectin. Contact angles and surface tensions variation with time were determined by the sessile and pendent drop techniques, respectively, using ADSA-P software. The highest (-18.1 mV) and lowest (-28.7 mV) values of zeta potential were found for hydroxyapatite (HA) and beta-tricalcium phosphate (beta-TCP), respectively, with composite materials presenting values in between. All studied bioceramic materials showed similar solid surface tension. For HA and beta-TCP, solid surface tensions of 46.7 and 45.3 mJ/m2, respectively, were obtained, while composites presented intermediate surface tension values. The dispersive component of surface tension was the predominant one for all materials studied. Adhesion work values between the vitronectin solution and HA and beta-TCP were found to be 79.8 and 88.0 mJ/m2, respectively, while the 4.0 wt % glass composites showed slightly lower values than the 2.5 wt % ones. The presence of beta-TCP influenced surface charge, hydrophobicity, and protein adsorption of the glass-reinforced HA composites, and therefore indirectly affected cell-biomaterial interactions.
机译：进行了润湿性和Zeta电位研究，以表征P2O5-玻璃纤维增​​强的羟基磷灰石复合材料的疏水性，表面张力和表面电荷。定量相分析是通过Rietveld方法，使用应用于X射线衍射图的GSAS软件进行的。通过ζ电势测量评估表面电荷。使用玻连蛋白进行蛋白质吸附研究。接触角和表面张力随时间的变化分别通过无柄和悬垂技术使用ADSA-P软件确定。分别发现羟基磷灰石（HA）和β-磷酸三钙（β-TCP）的最高（-18.1 mV）和最低（-28.7 mV）的zeta电位，复合材料的介电值介于两者之间。所有研究的生物陶瓷材料均显示出相似的固体表面张力。对于HA和β-TCP，获得的固体表面张力分别为46.7和45.3 mJ / m2，而复合材料则表现出中等的表面张力值。表面张力的分散成分是所有研究材料的主要成分。发现玻连蛋白溶液与HA和β-TCP之间的粘合功值分别为79.8和88.0 mJ / m2，而4.0 wt％的玻璃复合材料显示的值略低于2.5 wt％的复合材料。 β-TCP的存在影响玻璃纤维增​​强的HA复合材料的表面电荷，疏水性和蛋白质吸附，因此间接影响细胞与生物材料的相互作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号