Eventos Anais de eventos
COBEF 2017
Congresso Brasileiro de Engenharia de Fabricação
INFLUENCE OF LASER SINTERING PARAMETERS ON THE FABRICATION OF SCAFFOLDS FOR TISSUE ENGINEERING
Submission Author:
José Monteiro da Gama Tetraneto , PR
Co-Authors:
Camila Higa, fred lacerda amorim
Presenter: José Monteiro da Gama Tetraneto
doi://10.26678/ABCM.COBEF2017.COF2017-0091
Abstract
Tissue engineering seeks to repair tissue and organs by the implantation of scaffolds, which are three-dimensional structures that provide support for adherence and cellular development. This field is widely investigated due to high demand for organs and tissues transplants. Currently, fabrication of scaffolds with appropriate macro- and microstructures is a technological and engineering challenge, as conventional scaffolds fabrication processes have limitations in producing it with controlled pore size and defined architecture. Laser sintering is a potential alternative for the production of highly porous scaffolds with complex geometries and interconnected pores. This study investigated the influence of the main laser sintering parameters of biocompatible polymeric material poly (vinyl alcohol) (PVA) in scaffolds properties, through microstructural characterization and measurement of porosity. Laser power, scan lines spacing, layer thickness, part bed temperature and laser scan count was varied. Results showed that the variation of the laser sintering parameters influences the amount of energy supplied to the samples and, therefore, has great influence on the final quality of scaffolds microstructure and porosity. Higher energy levels provided better necking formation of the PVA particles
Keywords
Scaffold, Poly(vinyl alcohol), Laser Sintering
