期刊
APPLIED SURFACE SCIENCE
卷 434, 期 -, 页码 1232-1238出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.11.250
关键词
Hydroxyapatite; Surface free energy; Thin layer wicking
类别
资金
- Marie Curie Initial Training Network Complex Wetting Phenomena [607861]
- European Regional Development Fund [POIG.02.01.00-06-024/09]
Surface free energy is one of the parameters accompanying interfacial phenomena, occurring also in the biological systems. In this study the thin layer wicking method was used to determine surface free energy and its components for synthetic hydroxyapatite (HA) and natural one obtained from pig bones. The Raman, FTIR and X-Ray photoelectron spectroscopy, X-ray diffraction techniques and thermal analysis showed that both samples consist of carbonated hydroxyapatite without any organic components. Surface free energy and its apolar and polar components were found to be similar for both investigated samples and equalled gamma(TOT)(S)= 52.4 mJ/m(2), gamma(LW)(S)= 40.2 mJ/m(2) and gamma(AB)(S)= 12.3 mJ/m(2) for the synthetic HA and gamma(TOT)(s)= 54.6 mJ/m(2), gamma(LW)(S)= 40.3 mJ/m(2) and gamma(AB)(S)= 14.3 mJ/m(2) for the natural one. Both HA samples had different electron acceptor (gamma(+)(s)) and electron donor (gamma(-)(s)) parameters. The higher value of the electron acceptor was found for the natural HA whereas the electron donor one was higher for the synthetic HA. (C) 2017 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据