Frontiers in Science Lead ArticlePublished 24 February 2026Waste to value: microbial electrochemical technologies for sustainable water, material, and energy cyclesUwe Schröder · Falk Harnisch · Elizabeth Heidrich · Ioannis A. Ieropoulos · Bruce E. Logan · Dibyojyoty Nath · Deepak Pant · Sunil A. Patil · Sebastia Puig · Jason Ren · Ruggero Rossi · Amelia-Elena Rotaru · Annemiek ter HeijneFrontiers in Sciencedoi 10.3389/fsci.2026.1688727