Electrospinning of Polymer Nanofibers with Ordered Patterns and Architectures
Nanofibers with ordered patterns and architectures are critically important for many applications, including nanoscale device fabrication and tissue regenerations. During electrospinning process, the charge on a depositing nanofiber will become constant after the volatilization of solvent complete, which happens when the nanofibers get close to a collector that usually has a certain distance from the spinneret. In this case, the component forces acting on the depositing nanofibers that are arriving to a collector surfaces can be relatively analyzed based on the simulation results of the electrical field distribution on the collector. By using finite element method (FEM), in this study, the nanofiber deposition behavior including the orientation and alignment of nanofibers that are approaching to a collector were simulated and systematically investigated in term of the effects of electrostatic field applied to the collector. Based on the simulation results, we have experimentally demonstrated that Poly(ε-caprolactone) (PCL) nanofibers with various desired patterns and ordered architectures were prepared using predesigned collectors.
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Document Type: Research Article
Publication date: 2010-03-01
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- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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