Imaging, spectroscopy, mechanical, alignment and biocompatibility studies of electrospun medical grade polyurethane (Carbothane™ 3575A) nanofibers and composite nanofibers containing multiwalled carbon nanotubes.

作者: Faheem A. Sheikh , Javier Macossay , Travis Cantu , Xujun Zhang , M. Shamshi Hassan

DOI: 10.1016/J.JMBBM.2014.10.012

关键词:

摘要: Abstract In the present study, we discuss electrospinning of medical grade polyurethane (Carbothane™ 3575A) nanofibers containing multi-walled-carbon-nanotubes (MWCNTs). A simple method that does not depend on additional foreign chemicals has been employed to disperse MWCNTs through high intensity sonication. Typically, a polymer solution consisting polymer/MWCNTs electrospun form nanofibers. Physiochemical aspects prepared were evaluated by SEM, TEM, FT-IR and Raman spectroscopy, confirming MWCNTs. The biocompatibility cell attachment produced nanofiber mats investigated while culturing them in presence NIH 3T3 fibroblasts. results from these tests indicated non-toxic behavior had significant cells towards incorporation into polymeric led an improvement tensile stress 11.40±0.9 51.25±5.5 MPa. Furthermore, complete alignment resulted enhancement 72.78±5.5 MPa. Displaying attributes mechanical properties nature are recommended for ideal candidate future tendon ligament grafts.

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