Ma Jing, Liang Qian, Qin Wen, Lartey Patrick Osei, Li Ying, Feng Xiaojiang
Institute of New Carbon Materials, Taiyuan University of Technology, Taiyuan, 030024, China.
Institute of New Carbon Materials, Taiyuan University of Technology, Taiyuan, 030024, China.
J Mech Behav Biomed Mater. 2020 Feb;102:103497. doi: 10.1016/j.jmbbm.2019.103497. Epub 2019 Oct 17.
Carbon fiber reinforced Polyetheretherketone (PEEK) acquires mechanical strength which is close to human bone, but PEEK is inert, which can affect the bone fixation and osseointegration during dental implantation. To improve the bioactivity of PEEK, surface modification with nitric acid (HNO) and calcium chloride (CaCl) were utilized in this work. As the results, the hydrophilicity of the treated samples is significantly improved with the reduced roughness and attached nitro-functional group on its surface. The biological activity of CF/PEEK samples are enhanced by apatite formation evaluation soaking in simulated body fluid (SBF) in vitro after HNO and CaCl treatment. Moreover, the cytotoxicity experiments results confirm that surface treatment with HNO and CaCl is not harmful to the compatibility and safety of the cells.
