Mobula Rays Inspire Innovative Industrial Water Filter Designs

MIT engineers have taken inspiration from the **filter-feeding mechanism** of **mobula rays** to innovate industrial water filter designs. The rays, which include **manta and devil species**, feed by swimming through plankton-rich waters, filtering food while breathing. Their mouths contain **comb-like plates** that enable plankton capture and oxygen absorption. This natural design balances **permeability and selectivity**, a trade-off critical for industrial filters. Through experimentation, using a filter modeled on the mobula ray's structure, researchers discovered that **vortices** formed between the plates can block particles effectively, even at high fluid flow rates. This research provides a blueprint, beneficial for industries like **water treatment**, to design filters generating such vortices, enhancing performance by preventing clogging while maintaining high flow rates. The study, led by MIT's **Anette Hosoi** and **Xinyu Mao**, emerged from filtration research during the Covid pandemic and suggests a novel approach to refining industrial filters using bio-inspired designs.