期刊
MATERIALS & DESIGN
卷 133, 期 -, 页码 69-81出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2017.07.049
关键词
Electrospinning; Carbon nanotubes; Zinc oxide; Scaffold; Biocompatibility; Hydrophilicity
资金
- National Research Foundation of Korea (NRF) by Ministry of Education, Science and Technology [2016R1A2A2A07005160]
- Korea Industrial Complex Corporation [RHN16014]
- [NRF-2015R1C1A1A02036404]
- National Research Foundation of Korea [2016R1A2A2A07005160] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, we prepared nanotopographical polyurethane (PU)-based bioactive scaffolds that incorporated uniformly dispersed functionalized multi-wall carbon nanotubes (fMWCNTs) and zinc oxide (ZnO) nanoparticles (NPs) using an electrospinning technique. We found that well dispersed fMWCNTs along with ZnO NPs reinforced PU fibers demonstrated significant improvement in mechanical strength, hydrophilicity, thermal stability, electrical conductivity, degradability, biomineralization, and biocompatibility. Inspired by the exciting nature of biopolymeric composite (PU/ ZnO-fMWCNTs) membranes, these hybrid scaffolds offer extensive interest to tissue engineering as a potential biomedical application. The specific bioactive properties and cell-biomaterial interaction of electrospun scaffold containing 0.2 wt% ZnO with 0.4 wt% fMWCNTs were found to demonstrate antibacterial activity and cytocompatibility. Furthermore, the highly charged density, large surface-to-volume ratio, and more functional groups in fMWCNTs integrated on the scaffolds promote osteogenic differentiation of pre-osteoblast (MC3T3-E1) cells. Therefore, the novel as-prepared multifunctional electrospun fibrous scaffold could suggest new avenues for exploration as promising osteoproductive and osteoinductive biomaterials that offer great benefit to bone tissue engineering. (C) 2017 Published by Elsevier Ltd.
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