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MIT engineers have been investigating sapwood’s natural filtering ability, and have previously fabricated simple filters from peeled cross-sections of sapwood branches, demonstrating that the low-tech design effectively filters bacteria. Now, the same team has advanced the technology and shown that it works in real-world situations. They have fabricated new xylem filters that can filter out pathogens such as E. coli and rotavirus in lab tests, and have shown that the filter can remove bacteria from contaminated spring, tap, and groundwater. They also developed simple techniques to extend the filters’ shelf-life, enabling the woody disks to purify water after being stored in a dry form for at least two years. Credit: N.R. Fuller, Sayo Studio Credit: MIT Get more details about Xylem Water Filter at http://www.xylemwaterfilter.org/ Research Paper: Engineering and characterization of gymnosperm sapwood toward enabling the design of water filtration devices https://www.nature.com/articles/s4146... News Source: https://news.mit.edu/2021/filters-sap... Playlist for Technology News Videos - • Technology News- QPT Health - • Health and Medical Technologies