Magnetic micro/nano robots inspired by fish schools efficiently capture carbon dioxide

Scientists developed magnetic micro/nano robots that efficiently capture carbon dioxide from the air, inspired by schools of fish. These robots use cellulose nanofibers, polyethyleneimine, and magnetic nanoparticles. A temperature-sensitive polymer allows them to capture CO2 at room temperature and release it with minimal heat, significantly reducing energy requirements. The material is also biocompatible and antimicrobial, showing promise for life support systems in confined spaces like spacecraft and submarines, potentially lowering energy costs for carbon scrubbing.