Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Production of Nanofiber for Biomedical Application
Submission Author:
Patricia Capellato , SP
Co-Authors:
ANA PAULA R ALVES CLARO, Cecilia Zavaglia, Gilbert Silva, Patricia Capellato
Presenter: Patricia Capellato
doi://10.26678/ABCM.COBEM2017.COB17-2658
Abstract
The current interest in nanotechnology has increased due to exclusive properties of nanoscale materials. Electrospinning is a process for the production of polymeric fibers in nanometer scale, thus obtaining a greater surface area than the conventional spinning tecnique, enabling a variety of applications in areas such as tissue engineering, scaffolds, drug delivery, filters, biosensors, protective clothing, power generation, cosmetics, among others. One of the greatest attractions of this system lies on the simplicity of the equipment. The conventional system consists of three components: a spinneret, a high voltage power supply, and grounded collector, that may have several shapes. In this study, polymeric nanofibers were produced by means of a new technology consisting of a spinneret replaced by a metalic ring with a pyramidal shape on its externaal surface. This pyramidal mettalic ring (PMR) was then connected to the motor rotation axis, being dipped in a polymer solution, all connected to a high voltage power supply and a collector plate. An electric field was established and the electric forces overcame the surface tension, thus forming a jet solution that addressed the grounded collector. On the way between the PMR and the collector, the solvent evaporated leaving only the polymer. Results indicate that the electrospinning process using PMR allows for the production of a larger amount of polymeric nanofibers compared to the conventional electrospinning system. Therefore, it can be concluded that the electrospinning process with PMR has potential use in biomedical applications.
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