• 文献标题:   Evaluation of physical, mechanical, and biodegradation of chitosan/graphene oxide composite as bone substitutes
  • 文献类型:   Article
  • 作  者:   TAVAKOLI M, KARBASI S, BAKHTIARI SSE
  • 作者关键词:   chitosan, graphene oxide, composite, bone
  • 出版物名称:   POLYMERPLASTICS TECHNOLOGY MATERIALS
  • ISSN:   2574-0881 EI 2574-089X
  • 通讯作者地址:   Isfahan Univ Med Sci
  • 被引频次:   5
  • DOI:   10.1080/25740881.2019.1653467 EA AUG 2019
  • 出版年:   2020

▎ 摘  要

In this study, a nanocomposite was prepared from chitosan (Cs) and graphene oxide (GO) with different percentages. The results of Fourier-transform infrared spectroscopy, thermal gravity analysis, and X-ray diffraction showed that the presence of GO nanoparticles increased thermal stability and crystallinity of Cs. Tensile test results showed that the presence of 0.3 wt.% GO in Cs film increased the tensile strength and Young's modulus by 296% and 193%, respectively. The results of bioactivity and biodegradation test showed that the presence of GO in Cs film increased the density of the apatite-like layer on the surface and the degradation time. [GRAPHICS]