Selective nanofibers patterning via electric field-enhanced electrospinning

• Main Authors: Ding, Zhenweng, Wan Salim, Wan Wardatul Amani, Ziaie, Babak
• Format: Article
• Language: English
• Published: ACS Publications 2009
• Subjects: QC Physics; QD Chemistry
• Online Access: http://irep.iium.edu.my/44325/1/ding%20salim%20ziaie%202009.pdf; http://irep.iium.edu.my/44325/; http://pubs.acs.org/doi/abs/10.1021/la901924z

In this paper, we demonstrate a nanofiber patterning technique using field-enhanced electrospinning. Polyethylene oxide (PEO) nanofibers were electrospun on an elastomeric substrate with gold-coated pyramidal protrusions with the majority of fibers being deposited at the tips. The deposited nanofiber spots ranged from 8 × 8 μm2 to 60 × 60 μm2 in size, uniformly covering an area of 5 × 10 mm2. Our experiments also indicate that nanofiber pattern selectivity is highly dependent on the separation/size ratio of the pyramidal protrusions with a ratio of <1, resulting in a superior selectivity.