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Waterborne pathogens and related diseases are a severe public health threat worldwide. Recent studies suggest that microbial interactions among infectious agents can significantly disrupt the disinfection processes, and current disinfection methods cannot inactivate intracellular pathogens effectively, posing an emerging threat to the safety of drinking water. This study developed a novel strategy, the FeP/persulfate (PS) system, to effectively inactivate intracellular bacteria within the amoeba spore. We found that the sulfate radical (SO4•-) produced by the FeP/PS system can be quickly converted into hydroxyl radicals (•OH), and •OH can penetrate the amoeba spores and inactivate the bacteria hidden inside amoeba spores. Therefore, this study proposes a novel technique to overcome the protective effects of microbial interactions and provides a new direction to inactivate intracellular pathogens efficiently. Copyright © 2021 Elsevier B.V. All rights reserved.


Zhenzhen He, Ningchao Zheng, Lin Zhang, Yuehui Tian, Zhuofeng Hu, Longfei Shu. Efficient inactivation of intracellular bacteria in dormant amoeba spores by FeP. Journal of hazardous materials. 2022 Mar 05;425:127996

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PMID: 34902724

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