Sensitive visual detection of norfloxacin in water by smartphone assisted colorimetric method based on peroxidase-like active cobalt-doped Fe3O4 nanozyme

期刊论文会议论文项目成果本校专利科研立项专利申请成果转化科研成果简介

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Link by Elsevier

作者： Linchun Nie;Shuangying Li;Xiaozhong Gao;Shuai Yuan;Guangyu Dong;...

通讯作者： Qingxiang Zhou

作者机构： College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China

通讯机构： College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China

语种：英文

期刊：环境科学学报(英文版)

ISSN： 1001-0742

年： 2025

卷： 148

页码： 198-209

DOI： 10.1016/j.jes.2023.12.022

摘要： Norfloxacin is widely used owing to its strong bactericidal effect on Gram-negative bacteria. However, the residual norfloxacin in the environment can be biomagnified via food chain and may damage the human liver and delay the bone development of minors. Present work described a reliable and sensitive smartphone colorimetric sensing system based on cobalt-doped Fe3O4 magnetic nanoparticles (Co-Fe3O4 MNPs) for the visual detection of norfloxacin. Compared with Fe3O4, Co-Fe3O4 MNPs earned more remarkably peroxidase-like activity and TMB (colorless) was rapidly oxidized to oxTMB (blue) with the presence of H2O2. Interestingly, the addition of low concentration of norfloxacin...

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