Figure 1.
(a) Schematic of the fabrication process of wall structure by 3D electrospinning. (b) The wall is manually toppled and laid flat onto to paper substrate. (c) The toppled wall and paper are sandwiched in between a pair of top and bottom aluminum electrodes. SEM images of (d) straight wall and (e) toppled wall on paper substrate. (f) optical image of the assemble device.
