Continuous near-field electrospinning for large area deposition of orderly nanofiber patterns

被引:241
作者
Chang, Chieh [1 ]
Limkrailassiri, Kevin [1 ]
Lin, Liwei [1 ]
机构
[1] Univ Calif Berkeley, Dept Mech Engn, Berkeley Sensor & Actuator Ctr, Berkeley, CA 94720 USA
关键词
D O I
10.1063/1.2975834
中图分类号
O59 [应用物理学];
学科分类号
摘要
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.
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页数:3
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