Continuous near-field electrospinning for large area deposition of orderly nanofiber patterns
Continuous near-field electrospinning for large area deposition of orderly nanofiber patterns
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DOI：
10.1063/1.2975834
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发表时间：
2008-09-22
影响因子：
4
通讯作者：
Lin, Liwei
中科院分区：
文献类型：
--
作者：
Chang, Chieh;Limkrailassiri, Kevin;Lin, Liwei
发展了一种连续近场电纺(NFES)工艺，以在大面积沉积具有有序图案的固体纳米纤维。在开始静电纺丝之前，将偏置电压施加到注射器针头外的半球形聚合物液滴上，探头尖端机械地从液滴中拉出一根纤维，以启动连续的近场电子显微镜。与传统的电纺工艺相反，我们发现，在连续的NFES中，降低电场会导致较小的线宽沉积，并且纳米纤维可以在大面积和平坦的区域上组装成可控的复杂图案，如圆形和栅格阵列。(C)2008年美国物理研究所。
A continuous near-field electrospinning (NFES) process has been developed to deposit solid nanofibers with orderly patterns over large areas. Before the onset of electrospinning, a bias voltage is applied to a semispherical shaped polymer droplet outside of a syringe needle, and a probe tip mechanically draws a single fiber from the droplet to initiate continuous NFES. Contrary to the conventional electrospinning process, we show that decreasing electrical field in continuous NFES results in smaller linewidth deposition, and nanofibers can be assembled into controlled complex patterns such as circular shapes and grid arrays on large and flat areas. (C) 2008 American Institute of Physics.