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Fabrication and Properties of Electrospun Magnetoelectric Graphene/Fe3O4/Poly(lactic-co-glycolic acid) Short Nanofibers

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When used in tissue engineering, polymer nanofibers with magnetic and electrical functionality could promote the growth of tissues and cells by applying magnetic and electric stimulation. Short nanofibers with these properties, which have a high specific surface area and can be arranged through magnetic induction, have potential applications in the fields of materials and biomedical engineering. In this study, poly(lactic-co-glycolic acid) (PLGA) nanofibers with nano-Fe3O4 particles were subjected to electrostatic spinning to obtain superparamagnetic Fe3O4/PLGA nanofibers. After being processed in a homogenizer, graphene/Fe3O4/PLGA short nanofibers with a length of 11.90±2.03 μm and a diameter of 256.5±13.7 nm were prepared by in situ deposition. The effects of the PLGA concentration and graphene concentration on the morphology, size and conductivity of short fibers were studied by scanning electron microscopy (SEM) and conductivity testing. The chemical composition of the short fibers was characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The magnetic properties of the short fibers were characterized by using a vibrating sample magnetometer (VSM). Superparamagnetic and conductive PLGA nanofibers with a conductivity of 9.34×10−2 S/m were obtained for further applications.
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Keywords: Graphene; Magnetoelectric Polymer; PLGA; Short Nanofibers

Document Type: Research Article

Affiliations: School of Biological Science and Medical Engineering, Beihang University, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing 100083, China

Publication date: January 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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