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Memory Effect of Bacteria‐Killing Properties of Piezo‐Catalysts Nanomaterials through Defect Engineering
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Memory Effect of Bacteria‐Killing Properties of Piezo‐Catalysts Nanomaterials through Defect Engineering
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Journal Article
Memory Effect of Bacteria‐Killing Properties of Piezo‐Catalysts Nanomaterials through Defect Engineering
2025
Overview
This study investigates the effects of piezo‐catalysts on sterilizing surfaces. The memory effects in three piezo‐catalysts, ZnO, CuO, and SiO2 are discovered, which are produced by a calcination process. After applying mechanical force to these materials, they retain an antibacterial effect for a period of days. With this discovery, it is possible to combat antibiotic‐resistant bacteria by using piezo materials on hospital floors or operating rooms that can kill bacteria just by walking on them. The results show that ZnO, CuO, and SiO2 are capable of killing bacteria even after being subjected to mechanical force for 9 days. The memory effect duration can be influenced by a variety of factors, including the calcination temperature, the storage condition after ultrasonication, the drying temperature after ultrasonication, and the solvent in which the piezo‐catalyst is ultrasonicated. When ZnO, CuO, and SiO2 are kept under a vacuum in a dark environment, the piezo effect remains almost constant for 11 days after sonication. It was discovered by Omid Amiri and co‐workers that piezo‐catalysts or piezo materials exhibit an intriguing memory effect in their ability to kill bacteria. The effect is that the piezo materials can retain their activity even days after the mechanical force has been applied. The piezo‐catalysts can preserve their ability to kill bacteria for up to 11 days, depending on the conditions.
Publisher
John Wiley & Sons, Inc,Wiley-VCH
Subject
