Selective nanofiber deposition through field-enhanced electrospinning.
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 x 8 microm(2) to 60 x 60 microm(2) in size, uniformly covering an area of 5 x 10 mm(2). 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.
Ding
Zhenwen
Z
Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA.
Salim
Amani
A
Ziaie
Babak
B
D000268:Adhesiveness; D003198:Computer Simulation; D017097:Electric Impedance; D004563:Electrochemistry / Q000379:methods; D006046:Gold / Q000737:chemistry; D008855:Microscopy, Electron, Scanning / Q000379:methods; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D013499:Surface Properties
D011108:Polymers; D011092:Polyethylene Glycols; D006046:Gold