Bismuth selenide nanosheet layer materials with peroxidase activity for antimicrobial applications

Tian-Shi Jiang , Xin-Yu Li , Chang-Heng Zhu , Tian-Rong Yu , Han-Qing Zhao
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Abstract

A new type of bismuth selenide nanosheet layer material was synthesized by solvent thermal method, which is harmless to human body and can be used in combination with hydrogen peroxide solution as a new type of modern insecticide. The particle size of the bismuth selenide nanosheet material is about 80 nm, and it has good dispersion in water. In this experiment, the antibacterial ability of the material was investigated using Escherichia coli and Staphylococcus aureus as bacterial models and plant pathogens such as strawberry gray mold and tomato gray mold as fungal models. In addition, the in vivo bioassay indicated that Bi2Se3+H2O2 possessed effective control against Pepper Anthrax Disease. The biocompatibility of this material was also investigated using human umbilical vein endothelial cells (HUVEC) as a model, and the results showed that the bismuth selenide nanosheet material has good antibacterial ability and biocompatibility.

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具有过氧化物酶活性的硒化铋纳米片层材料的抗菌应用
利用溶剂热法合成了一种新型硒化铋纳米片层材料,该材料对人体无害,可与过氧化氢溶液结合使用,是一种新型的现代杀虫剂。硒化铋纳米片层材料的粒径约为 80 nm,在水中具有良好的分散性。本实验以大肠杆菌和金黄色葡萄球菌为细菌模型,以草莓灰霉病和番茄灰霉病等植物病原菌为真菌模型,研究了该材料的抗菌能力。此外,体内生物测定表明,Bi2Se3+H2O2 能有效防治辣椒炭疽病。此外,还以人脐静脉内皮细胞(HUVEC)为模型研究了该材料的生物相容性,结果表明硒化铋纳米片材料具有良好的抗菌能力和生物相容性。
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