3D Printed PLA/PCL/TiO2 Composite for Bone Replacement and Grafting

被引:0
|
作者
Najera, Sandra E. [1 ,2 ]
Michel, Monica [1 ,2 ]
Kim, Nam-Soo [1 ,2 ]
机构
[1] Univ Texas El Paso, Met Mat & Biomed Engn Dept, El Paso, TX 79968 USA
[2] Univ Texas El Paso, Met Mat & Biomed Engn Dept, Printing Nano Engn Lab, El Paso, TX 79968 USA
来源
MRS ADVANCES | 2018年 / 3卷 / 40期
关键词
D O I
10.1557/adv.2018.375
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Polymer composites of Polylactic acid (PLA) and poly-e-caprolactone (PCL), containing small amounts of titanium oxide (TiO2) were developed for biomedical applications. These composite materials were prepared, and then printed using Fused Deposition Modeling (FDM). 3D printed structures were characterized to determine their mechanical properties and biocompatibility. DSC analysis yielded useful information regarding the immiscibility of the different polymers, and it was observed that the particles of TiO2 improved the stability, of the polymers. The ultimate tensile strength and the fracture strain increased by adding TiO2 as a filler, resulting in values of approximately 45 MPa and 5.5 % elongation. The printed composites show excellent in vitro biocompatibility including cell proliferation and adhesion, and are therefore promising candidates to be used in the biomedical field for bone replacement procedures, due to their properties similar to those of cancellous bone.
引用
收藏
页码:2373 / 2378
页数:6
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