3D printing has opened up new possibilities across multiple fields, from food production to housing. Now, its use in designing the next generation of sustainable technologies could be a game-changer. Microbial electrochemical systems have broad applications for green tech, including wastewater treatment, energy generation, and chemical synthesis, as a report by SciTechDaily explained. These devices leverage microorganisms to transfer electrons, and MES can both degrade pollutants and generate electricity, making them a future-forward tool for sustainable design. Among the advantages of using 3D printing for MES is the ability to rapidly prototype and customize reactor designs, as the report detailed. This gives researchers the flexibility to optimize fluid dynamics and mass transfer within the reactors, helping improve performance.