Enhancement of antibacterial activity in CuO/ZnO nanohybrid p-n heterojunctions

被引：8

作者：

Liu, Minjie ^{[1
]}

Liu, Rumin ^{[2
]}

Yu, Tao ^{[2
]}

Shao, Wenyi ^{[2
]}

Yuan, Weiyong ^{[3
]}

Lu, Jianguo ^{[2
]}

机构：

[1] Ningbo Univ, Dept Gastroenterol, Affiliated Peoples Hosp, Ningbo 315040, Peoples R China

[2] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon & Adv Semicond Mat, Hangzhou 310058, Peoples R China

[3] Zhejiang Univ, Ningbo Innovat Ctr, Ningbo 315100, Peoples R China

来源：

MATERIALS LETTERS | 2024年 / 356卷

关键词：

CuO/ZnO hybrid; p-n Heterojunction; Antibacterial behavior; Reactive oxygen species; Biomaterials; Nanocomposites; ZNO; CUO; OXIDE;

D O I：

10.1016/j.matlet.2023.135596

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The p-n heterojunctions may contribute to the antibacterial effect, but the study on this issue is limited and the interpretation remains controversial. Herein, we designed p-n heterojunctions in CuO/ZnO nano-hybrids, demonstrating remarkable antibacterial efficiency against Escherichia coli (Gram negative) of 93.94 % and Staphylococcus aureus (Gram positive) of 95.69 % at an ultra-low concentration of 10 mu g/ml. Mott-Schottky analysis reveals the formation of p-n heterojunctions at CuO/ZnO interfaces, elevating the generation of reac-tive oxygen species, which is responsible for the enhanced antibacterial behaviors. The CuO/ZnO nano-hybrids with p-n heterojunctions are expected to be a high-efficient, broad-spectrum antibacterial materials for practical applications.

引用

页数：4

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