Impressão 3D do PLA para aplicações biomédicas

Abstract

Currently, additive manufacturing (AM) machines, popularly known as 3D printers, can already be found in the most diverse environments around the world, from industrial facilities, homes, offices, service providers, academic institutions to government and military institutions, including the International Space Station (ISS). In recent years has been an increase in the number of plastics being developed for use in AM, opening space for the advancement of materials to be applied in the medical and biotechnological sector, proving to be a great alternative for the future. One of the techniques used in AM is Fused Deposition Modeling (FDM), where a polymer filament is introduced into the printer and then heated and melted to later be deposited on a construction surface, allowing the fabrication of objects in 3 dimensions. In this sense, the use of biomaterials for medical application built from AM technologies becomes an alternative. Therefore, the objective of this work was to carry out a literature review on the main advances and challenges in the areas of tissue engineering and regenerative medicine, through the manufacture of devices using biopolymers, through the additive manufacturing process. For this, the methodology was based on the Systematic Literature Review protocol, through the definition of the database to be explored, the research themes, the strings used for the search and the temporal delimitation of the research. As a result, it was possible to analyze the progress of the study on the subject, with the volume of publications increasing each year. In addition, it was also possible to verify the most promising polymers, considering the relations between their properties and applications, as well as the main challenges for practical application in a viable way.