PMID- 29284363 OWN - NLM STAT- MEDLINE DCOM- 20190718 LR - 20220410 IS - 1568-5624 (Electronic) IS - 0920-5063 (Linking) VI - 29 IP - 4 DP - 2018 Mar TI - Preparation, mechanical properties and in vitro cytocompatibility of multi-walled carbon nanotubes/poly(etheretherketone) nanocomposites. PG - 428-447 LID - 10.1080/09205063.2017.1422852 [doi] AB - Desired bone repair material must have excellent biocompatibility and high bioactivity. Moreover, mechanical properties of biomaterial should be equivalent to those of human bones. For developing an alternative biocomposite for load-bearing orthopedic application, combination of bioactive fillers with polymer matrix is a feasible approach. In this study, a series of multi-walled carbon nanotubes (MWCNTs)/poly(etheretherketone) (PEEK) bioactive nanocomposites were prepared by a novel coprecipitation-compounding and injection-molding process. Scanning electron microscope (SEM) images revealed that MWCNTs were adsorbed on the surface of PEEK particles during the coprecipitation-compounding process and dispersed homogeneously in the nanocomposite because the conjugated PEEK polymers stabilized MWCNTs by forming strong pi-pi stack interactions. The mechanical testing revealed that mechanical performance of PEEK was significantly improved by adding MWCNTs (2-8 wt%) and the experimental values obtained were close to or higher than that of human cortical bone. In addition, incorporation of MWCNTs into PEEK matrix also enhanced the roughness and hydrophilicity of the nanocomposite surface. In vitro cytocompatibility tests demonstrated that the MWCNTs/PEEK nanocomposite was in favor of cell adhesion and proliferation of MC3T3-E1 osteoblast cells, exhibiting excellent cytocompatibility and biocompatibility. Thus, this MWCNTs/PEEK nanocomposite may be used as a promising bone repair material in orthopedic implants application. FAU - Cao, Jianfei AU - Cao J AD - a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , China. AD - b University of Chinese Academy of Sciences , Beijing , China. FAU - Lu, Yue AU - Lu Y AD - a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , China. AD - b University of Chinese Academy of Sciences , Beijing , China. FAU - Chen, Hechun AU - Chen H AD - a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , China. FAU - Zhang, Lifang AU - Zhang L AD - a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , China. FAU - Xiong, Chengdong AU - Xiong C AD - a Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences , Chengdu , China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180109 PL - England TA - J Biomater Sci Polym Ed JT - Journal of biomaterials science. Polymer edition JID - 9007393 RN - 0 (Benzophenones) RN - 0 (Biocompatible Materials) RN - 0 (Ketones) RN - 0 (Nanotubes, Carbon) RN - 0 (Polymers) RN - 31694-16-3 (polyetheretherketone) RN - 3WJQ0SDW1A (Polyethylene Glycols) SB - IM MH - Animals MH - Benzophenones MH - Biocompatible Materials MH - Cell Adhesion MH - Cell Line MH - Cell Proliferation MH - Humans MH - Ketones/*chemistry MH - Materials Testing MH - Mice MH - Nanocomposites/*chemistry MH - Nanotubes, Carbon/*chemistry MH - Osteoblasts/cytology MH - Polyethylene Glycols/*chemistry MH - Polymers MH - Prostheses and Implants MH - Surface Properties OTO - NOTNLM OT - Carbon nanotubes OT - biomaterial OT - cell proliferation OT - cytocompatibility OT - in vitro OT - mechanical properties OT - poly(etheretherketone) EDAT- 2017/12/30 06:00 MHDA- 2019/07/19 06:00 CRDT- 2017/12/30 06:00 PHST- 2017/12/30 06:00 [pubmed] PHST- 2019/07/19 06:00 [medline] PHST- 2017/12/30 06:00 [entrez] AID - 10.1080/09205063.2017.1422852 [doi] PST - ppublish SO - J Biomater Sci Polym Ed. 2018 Mar;29(4):428-447. doi: 10.1080/09205063.2017.1422852. Epub 2018 Jan 9.