Electrospun Three-Dimensional Nanofibrous Structure via Probe Arrays Inducing

The fast and precise fabrication of three-dimensional (3D) nanofibrous structures is the important development trend for electrospinning technique. In this paper, probe arrays were served as collectors to build up 3D electrospun nanofibrous structures. The height of probes was adjusted to form complex shapes, through which different stereo structures were achieved accurately. The effects of processing parameters were investigated, such as the probe height, probe interval, applied voltage and flow rate. The deposition area of 3D electrospun nanofibrous structure decreased with the increase of applied voltage and flow rate. Several 3D nanofibrous structures of special shapes including convex, triangle wave, inverted cone and complex curved surface were demonstrated. This work provides an effective and easy way for the construction of 3D electrospun nanofibrous structures, which has great potential in industrial applications.