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Electrospun Three-Dimensional Nanofibrous Structure via Probe Arrays Inducing

1
Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
2
School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China
3
School of Mathematical Sciences, Xiamen University, Xiamen 361005, China
4
Fujian Provincial Key Laboratory of Mathematical Modeling and High Performance Scientific Computing, Xiamen University, Xiamen 361005, China
*
Author to whom correspondence should be addressed.
Micromachines 2018, 9(9), 427; https://doi.org/10.3390/mi9090427
Received: 10 August 2018 / Revised: 19 August 2018 / Accepted: 21 August 2018 / Published: 24 August 2018
(This article belongs to the Special Issue Advanced MEMS/NEMS Technology)
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Abstract

The fast and precise direct-printing of micro three-dimensional (3D) structures is the important development trend for micro/nano fabrication technique. A novel method with probe arrays was built up to realize the controllable deposition of 3D electrospun nanofibrous structures. Firstly, several 3D nanofibrous structures were built on a single probe and 2-, 3-probes, which indicated that the probe height and probe interval played a key role on the 3D structure morphology. Then, different stereo nanofibrous structures based on multiprobe arrays were achieved accurately and the effects of processing parameters, including the probe height, probe interval, applied voltage and flow rate on the deposition behaviors of electrospun nanofiber over the probe arrays were investigated. The deposition area of 3D electrospun nanofibrous structures decreased with the increase of probe interval, applied voltage, and flow rate. Several 3D nanofibrous structures of special shapes including convex, triangle wave, inverted cone and complex curved surface were demonstrated by controlling the configuration of probe arrays and electrospinning parameters. This work provides an effective and simple way for the construction of 3D electrospun nanofibrous structures, which has great potentials in various medical and industrial applications. View Full-Text
Keywords: electrospinning; nanofiber; three-dimensional micro structures; probe arrays; induced electrical field electrospinning; nanofiber; three-dimensional micro structures; probe arrays; induced electrical field
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Liu, Y.; Liu, R.; Wang, X.; Jiang, J.; Li, W.; Liu, J.; Guo, S.; Zheng, G. Electrospun Three-Dimensional Nanofibrous Structure via Probe Arrays Inducing. Micromachines 2018, 9, 427.

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