PMID- 29627737 OWN - NLM STAT- MEDLINE DCOM- 20190726 LR - 20220408 IS - 1878-0180 (Electronic) IS - 1878-0180 (Linking) VI - 82 DP - 2018 Jun TI - In-vitro biocompatibility, bioactivity, and mechanical strength of PMMA-PCL polymer containing fluorapatite and graphene oxide bone cements. PG - 257-267 LID - S1751-6161(18)30308-4 [pii] LID - 10.1016/j.jmbbm.2018.03.016 [doi] AB - In this study, a bone cement consisting of poly methyl methacrylate (PMMA)-poly caprolactone (PCL)-fluorapatite (FA)-graphene oxide (GO) was synthesized as bone filler for application in orthopedic surgeries. The FA and GO particulates were homogenously distributed in the PMMA-PCL polymer matrix and no defects and agglomeration were found in the PMMA-PCL/FA/GO bone cement. The in-vitro bioactivity result exhibited that addition of FA and GO to the polymer cement (PMMA-PCL) improved the apatite formation ability on the surface of polymer. The results also showed that addition of FA to the polymer bone cement escalated the compressive strength and elastic modulus while reducing elongation to 8 +/- 2%. However, after addition of GO into the PMMA-PCL/FA bone cement, both compressive strength and elongation considerably increased to 101 +/- 5 MPa and 35 +/- 6%, respectively. Furthermore, tensile tests exhibited that inclusion of GO was favorable in improving the tensile modulus, UTS and elongation of the PMMA-PCL/FA bone cement. The cytotoxicity test pointed out that MG63 osteoblast cells viability increased to 279 +/- 15% after addition of FA and GO to the PMMA-PCL polymer bone cement. The DAPI (4',6-diamidino-2-phenylindole) staining demonstrated better spreading and attachment of MG63 cells on PMMA-PCL/FA/GO surface compared to the PMMA-PCL bone cements. These results confirm the suitable mechanical properties and favorable bioactivity along with high cells viability of PMMA-PCL/FA/GO bone cement, indicating its potentials for orthopedic applications. CI - Copyright (c) 2018 Elsevier Ltd. All rights reserved. FAU - Pahlevanzadeh, F AU - Pahlevanzadeh F AD - Department of Tissue Engineering, Najafabad branch, Islamic Azad University, Najafabad, Iran. FAU - Bakhsheshi-Rad, H R AU - Bakhsheshi-Rad HR AD - Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran. Electronic address: rezabakhsheshi@pmt.iaun.ac.ir. FAU - Hamzah, E AU - Hamzah E AD - Department of Materials, Manufacturing and Industrial Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor Bahru, Johor, Malaysia. LA - eng PT - Journal Article DEP - 20180315 PL - Netherlands TA - J Mech Behav Biomed Mater JT - Journal of the mechanical behavior of biomedical materials JID - 101322406 RN - 0 (Apatites) RN - 0 (Bone Cements) RN - 0 (Oxides) RN - 0 (Polyesters) RN - 24980-41-4 (polycaprolactone) RN - 7782-42-5 (Graphite) RN - 9011-14-7 (Polymethyl Methacrylate) RN - M4CM1H238J (fluorapatite) MH - Apatites/*chemistry MH - Bone Cements/*chemistry/pharmacology MH - Cell Line MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - Graphite/*chemistry MH - Humans MH - Materials Testing MH - *Mechanical Phenomena MH - Models, Molecular MH - Molecular Conformation MH - Osteoblasts/cytology/drug effects MH - Oxides/*chemistry MH - Polyesters/*chemistry MH - Polymethyl Methacrylate/*chemistry OTO - NOTNLM OT - Bioactivity OT - Biocompatibility OT - Mechanical properties OT - Polymer bone cement EDAT- 2018/04/09 06:00 MHDA- 2019/07/28 06:00 CRDT- 2018/04/09 06:00 PHST- 2017/12/29 00:00 [received] PHST- 2018/03/08 00:00 [revised] PHST- 2018/03/12 00:00 [accepted] PHST- 2018/04/09 06:00 [pubmed] PHST- 2019/07/28 06:00 [medline] PHST- 2018/04/09 06:00 [entrez] AID - S1751-6161(18)30308-4 [pii] AID - 10.1016/j.jmbbm.2018.03.016 [doi] PST - ppublish SO - J Mech Behav Biomed Mater. 2018 Jun;82:257-267. doi: 10.1016/j.jmbbm.2018.03.016. Epub 2018 Mar 15.