Fig. 6

A Schematic illustration of our custom-built electrospinning device. Controlling the polarity of the collecting electrodes to regulate fiber orientation is possible using the vacuum relay switch (SEM images C through E). B Graphical user interface (GUI) is written in LabView 8.2 to control the construction parameters of electrospun scaffolds. C Typical scanning electron microscopy (SEM) picture of an electrospun scaffold with random fiber orientation (made from 10% gelatin B in HFIP). Scaffold with aligned fiber orientation (D), scaffold with gridded fiber alignment (E), and tubular scaffold built on a spinning mandrel (F) [209]