Desenvolvimento e aplicações de biocerâmica

Doped ceria has emerged as a promising material for Solid Oxide Fuel Cells (SOFCs) due to its high oxygen ion conductivity. In this study, we delve into the intricacies of doped ceria's behavior by combining Micro Raman and impedance spectroscopy measurements. Our investigation uncovers a lower activation energy to ionic conductivity above 750 K, coinciding with a notable discontinuity in the Raman shift of the CeO₂ signal at the same temperature. This correlation provides valuable insights into the underlying mechanisms governing the enhanced ionic conductivity in doped ceria. Solid Oxide Fuel Cells (SOFCs) have garnered significant attention as clean and efficient energy conversion devices. Doped ceria, a derivative of cerium oxide (CeO₂), has emerged as a leading candidate for electrolyte materials in SOFCs due to its high oxygen ion conductivity. To elucidate the temperature-dependent behavior of doped ceria, we employed Micro Raman and impedance spectroscopy techniques.

Maxillofacial bone tissue engineering stands at the forefront of revolutionary advancements in regenerative medicine, offering hope for improved outcomes in facial reconstruction and repair. However, the design of scaffolds for this intricate application requires special considerations. This article explores the challenges faced in the design of scaffolds for maxillofacial bone tissue engineering, emphasizing the pressing need for improvements in clinically available scaffolds. The discussion encompasses current limitations, ongoing research endeavors, and potential pathways to elevate the efficacy of maxillofacial bone repair. The reconstruction of maxillofacial bone defects poses unique challenges that demand specialized solutions in tissue engineering.