In issue 14 (vol. 8) of Perspectivas de la Ciencia y la Tecnología, readers will find research on hydrogen production as a clean energy source, exploring photocatalysis as a sustainable alternative. They will also discover how perovskites are revolutionizing materials science with applications in energy and technology. In the transportation sector, the issue reviews the production of sustainable aviation fuel from waste, highlighting innovative biological processes. In the health field, studies on hemodialysis filters and their mechanical performance are presented, along with advances in photodynamic therapy, a promising strategy for combating infections and treating cancer.