Department of Biomedical Engineering, University of California, Irvine, California 92617, United States.
Nano Lett. 2011 Apr 13;11(4):1831-7. doi: 10.1021/nl2006164. Epub 2011 Mar 29.
We report on a continuous method for controlled electrospinning of polymeric nanofibers on two-dimensional (2D) and three dimensional (3D) substrates using low voltage near-field electrospinning (LV NFES). The method overcomes some of the drawbacks in more conventional near-field electrospinning by using a superelastic polymer ink formulation. The viscoelastic nature of our polymer ink enables continuous electrospinning at a very low voltage of 200 V, almost an order of magnitude lower than conventional NFES, thereby reducing bending instabilities and increasing control of the resulting polymer jet. In one application, polymeric nanofibers are freely suspended between microstructures of 3D carbon on Si substrates to illustrate wiring together 3D components in any desired pattern.
我们报告了一种使用低压近场电纺（LV NFES）在二维（2D）和三维（3D）基板上对聚合物纳米纤维进行可控纺丝的连续方法。该方法通过使用超弹性聚合物油墨配方克服了一些更传统的近场电纺的缺点。我们聚合物油墨的粘弹性使得在非常低的 200V 电压下能够连续纺丝，比传统的 NFES 低了几乎一个数量级，从而减少了弯曲不稳定性并增加了对所得聚合物射流的控制。在一个应用中，聚合物纳米纤维自由地悬挂在 Si 基板上的 3D 碳微结构之间，以说明以任何所需图案将 3D 组件连接在一起。
