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(a) Schematic illustration of the setup for electrospinning that was used to generate twisted nanofibers. [(b)–(e)] Movement of the fibers on each side of the auxiliary electrode under an applied voltage. (f) The simulated electric field strength vectors in the electrospinning apparatus. Lines of electrostatic force between the syringe tip and the collector screen in conventional electrospinning system. [(g) and (h)] Lines of electrostatic force in the vicinity of the top and bottom auxiliary electrodes in modified electrospinning system.
(Color) (a) Twisted nanofibers obtained using an auxiliary electrode connected to a relay. (b) The different profiles along the length of the twisted nanofiber. [(c)–(e)] Different height profiles of suspended twisted nanofibers obtained from the AFM image shown in (b).
Change in period of the twisted nanofiber length vs relay time. Samples were obtained using four different applied relay times. The inset shows an image with a periodic length of approximately obtained using a relay time.
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