Controlled continuous patterning of polymeric nanofibers on three-dimensional substrates using low-voltage near-field electrospinning
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- Controlled continuous patterning of polymeric nanofibers on three-dimensional substrates using low-voltage near-field electrospinning
- Bisht, Gobind S.; Canton, Giulia; Mirsepassi, Alireza; Kuinsky, Lawrence; Oh, Seajin; Dunn-Rankin, Derek; Madou, Mark
- Electrospinning; polymeric nanofiber; micro/nanopatterning; suspended nanofibers; microfabrication; microelectromechanical systems (MEMS)
- Issue Date
- AMER CHEMICAL SOC
- NANO LETTERS, v.11, no.4, pp.1831 -
- We report on a continuous method for controlled electrospinning of polymeric nanofibers on two-dimensional (2D) and three dimensional (3D) substrates using low voltage near-field electrospinning (LV NFES). The method overcomes some of the drawbacks in more conventional near-field electrospinning by using a superelastic polymer ink formulation. The viscoelastic nature of our polymer ink enables continuous electrospinning at a very low voltage of 200 V, almost an order of magnitude lower than conventional NFES, thereby reducing bending instabilities and increasing control of the resulting polymer jet. In one application, polymeric nanofibers are freely suspended between microstructures of 3D carbon on Si substrates to illustrate wiring together 3D components in any desired pattern.
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