Nature Sustainability3D-printed living materials for anammox–denitrification coupling in wastewater treatmentYinuo LiuHuilin WanJiaojiao NiuEnlei LiangXuezhuang LiuChunfang ChaoBibek BamanuYiwen LiuYindong TongGuanyi ChenYingxin Zhao2026-09-07Full textDOI https://doi.org/10.1038/s41893-026-01921-9