PMID- 24857506 OWN - NLM STAT- MEDLINE DCOM- 20150119 LR - 20191210 IS - 1873-0191 (Electronic) IS - 0928-4931 (Linking) VI - 40 DP - 2014 Jul 1 TI - In vitro and in vivo evaluation of a new nanocomposite, containing high density polyethylene, tricalcium phosphate, hydroxyapatite, and magnesium oxide nanoparticles. PG - 382-8 LID - S0928-4931(14)00210-0 [pii] LID - 10.1016/j.msec.2014.04.018 [doi] AB - In this study, a new nanocomposite, which contained high density polyethylene (HDPE), tricalcium phosphate (Ca3(PO4)2) nanoparticles (TCP NPs), hydroxyapatite nanoparticles (HA NPs), and magnesium oxide nanoparticles (MgO NPs) was prepared. As in vitro experiment, human osteoblasts (HOB) cells were exposed to pristine HDPE and its nanocomposite for a period of 1, 4, and 7 days at 37 degrees C, and then different assays were carried out, including osteoblast cell proliferation, Trypan blue staining, cell viability, alkaline phosphatase (ALP), and cell adhesion. Antibacterial property of pristine HDPE and its nanocomposite was evaluated, and also their mechanical properties were measured after 2 and 4 months. As in vivo experiment, pristine HDPE and its nanocomposite were separately implanted on calvarium bone of rabbits, and tissue inflammation and osteogenesis were investigated after 2, 4, and 6 months. In case of HOB cells treated with HDPE or nanocomposite, as incubation time was increased, cell proliferation, live/dead ratio, and cell viability were decreased. But, the ALP activity and cell adhesion of HOB cells which treated with nanocomposite were raised after increase of incubation time. This study demonstrated that although the mechanical properties of nanocomposite were similar to HDPE sheet, but their antibacterial property was not similar. The in vivo experiment showed that both pristine HDPE and its nanocomposite had same inflammation responses. Interestingly, osteogenesis was observed after 2 months at bone/nanocomposite interface, and was highly increased after 4 and 6 months. It must be noted that such pattern was not seen at bone/HDPE interface. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Pourdanesh, Fereydoun AU - Pourdanesh F AD - Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran 8916733754, Iran. FAU - Jebali, Ali AU - Jebali A AD - Department of Medical Physics and Biomedical Engineering, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address: alijebal2011@gmail.com. FAU - Hekmatimoghaddam, Seyedhossein AU - Hekmatimoghaddam S AD - Department of Laboratory Sciences, School of Paramedicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. FAU - Allaveisie, Azra AU - Allaveisie A AD - Department of Genetics, Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. LA - eng PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140415 PL - Netherlands TA - Mater Sci Eng C Mater Biol Appl JT - Materials science & engineering. C, Materials for biological applications JID - 101484109 RN - 0 (Anti-Bacterial Agents) RN - 0 (Bone Substitutes) RN - 0 (Calcium Phosphates) RN - 3A3U0GI71G (Magnesium Oxide) RN - 9002-88-4 (Polyethylene) RN - 91D9GV0Z28 (Durapatite) RN - K4C08XP666 (tricalcium phosphate) SB - IM MH - Animals MH - Anti-Bacterial Agents/chemistry/pharmacology MH - Bone Substitutes/chemistry/pharmacology MH - Calcium Phosphates/chemistry MH - Cell Adhesion/*drug effects MH - Cell Line MH - Cell Proliferation/*drug effects MH - Cell Survival/drug effects MH - Durapatite/chemistry MH - Escherichia coli/drug effects MH - Humans MH - Inflammation/etiology MH - Magnesium Oxide/chemistry MH - Nanocomposites/chemistry/*toxicity MH - Nanoparticles/*chemistry MH - Osteogenesis/drug effects MH - Polyethylene/chemistry MH - Pseudomonas aeruginosa/drug effects MH - Rabbits MH - Staphylococcus aureus/drug effects MH - Temperature MH - Time Factors OTO - NOTNLM OT - High density polyethylene OT - Hydroxyapatite OT - Magnesium oxide OT - Nanoparticles OT - Tricalcium phosphate EDAT- 2014/05/27 06:00 MHDA- 2015/01/20 06:00 CRDT- 2014/05/27 06:00 PHST- 2013/07/18 00:00 [received] PHST- 2014/01/22 00:00 [revised] PHST- 2014/04/07 00:00 [accepted] PHST- 2014/05/27 06:00 [entrez] PHST- 2014/05/27 06:00 [pubmed] PHST- 2015/01/20 06:00 [medline] AID - S0928-4931(14)00210-0 [pii] AID - 10.1016/j.msec.2014.04.018 [doi] PST - ppublish SO - Mater Sci Eng C Mater Biol Appl. 2014 Jul 1;40:382-8. doi: 10.1016/j.msec.2014.04.018. Epub 2014 Apr 15.