
20 Cell and Material Interface
By lifting the deposited material off the surface of the water, the electrospun
membranes collapsed into a continuous ber bundle, which was subsequently col-
lected on a rotating mandrel shown in Figure 2.2c. Further developments to this pro-
cess utilized dynamic liquid collection techniques to produce nanoyarns. Teo etal.
35
employed water vortices within a collector tank to induce self-bundling of deposited
electrospun materials. The vortex was formed within the collection tank by allowing
liquid to drain from an outlet located in the base of the tank while a recirculating
pump maintained a constant uid hei