An innovative and versatile approach to design highly porous, patterned, nanofibrous polymeric materials |
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Authors: | A Zucchelli D Fabiani C Gualandi and M L Focarete |
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Affiliation: | (1) Department of Mechanical Engineering (DIEM), University of Bologna, viale Risorgimento 2, 40136 Bologna, Italy;(2) Department of Electrical Engineering, University of Bologna, viale Risorgimento 2, 40136 Bologna, Italy;(3) Department of Chemistry “G. Ciamician” and National Consortium of Materials Science and Technology (INSTM, UdR Bologna), University of Bologna, via Selmi 2, 40126 Bologna, Italy |
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Abstract: | Electrospinning technology is attracting increasing interest for the fabrication of several polymeric and inorganic nanofibrous
materials useful for a wide range of applications. Although the intensive research performed to understand the physics of
the electrospinning process, control of polymeric jet path and of fibre deposition still remains a challenge. In this work,
micropatterned electrospun materials with tunable porosity are fabricated by using novel collector devices made up of a steel
sheet coated with a vitreous enamel layer. The novel approach permits to modulate electrical properties of the collector,
acting on charge distribution and charge diffusion properties of the vitreous enamel coating, without introducing substantial
modification of the electrospinning apparatus. The proposed solution allows the achievement of novel electrospun products
for all those advanced applications requiring materials with suited fibre deposition such as, microelectronics, optical and
photonic devices, as well as scaffolds for tissue engineering. |
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