利用碳纳米管作为模板的类骨磷灰石形成。

Bonelike apatite formation utilizing carbon nanotubes as template.

机构信息

Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore 117574.

出版信息

Langmuir. 2010 Mar 16;26(6):4069-73. doi: 10.1021/la9034722.

DOI:10.1021/la9034722

PMID:20020722

Abstract

Template-induced hydroxyapatite (HA) has broad prospects in the applied fields of regenerative medicine and bone repair. HA thin coatings have been deposited on vertically aligned multiwalled carbon nanotubes (CNTs) via the high-temperature radio-frequency (rf) magnetron sputtering deposition technique. Simulated body fluid (SBF) solution has been used to soak and incubate the HA/CNTs nanocomposites at 37 degrees C. SEM, EDS, XRD, and FTIR characterizations revealed bonelike apatite formation on top of HA/CNTs composites. Coating HA material on well-aligned CNT-template provides a way of combining the superior mechanical properties and chemical stability of the CNTs with the excellent biochemical properties of HA.

摘要

模板诱导的羟基磷灰石（HA）在再生医学和骨修复等应用领域具有广阔的前景。通过高温射频（rf）磁控溅射沉积技术，在垂直排列的多壁碳纳米管（CNT）上沉积了 HA 薄膜。采用模拟体液（SBF）溶液在 37°C 下浸泡和孵育 HA/CNTs 纳米复合材料。SEM、EDS、XRD 和 FTIR 表征显示，在 HA/CNTs 复合材料表面形成了类骨磷灰石。在高度取向的 CNT 模板上涂覆 HA 材料为 CNT 的优异机械性能和化学稳定性与 HA 的优异生物化学性能的结合提供了一种途径。