多肉状微马达用于动态检测和降解四环素  

Succulent-like light-driven micromotor for dynamic fluorescence detection and photocatalytic degradation of tetracycline

作　　者：方利 刘心怡 高宇昕 林奕宜 吴坤 王吉壮 陆伟刚 李丹 Li Fang;Xinyi Liu;Yuxin Gao;Yiyi Lin;Kun Wu;Jizhuang Wang;Weigang Lu;Dan Li(College of Chemistry and Materials Science,Jinan University,Guangzhou 510632,China;Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications,Jinan University,Guangzhou 510632,China)

机构地区：[1]College of Chemistry and Materials Science,Jinan University,Guangzhou 510632,China [2]Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications,Jinan University,Guangzhou 510632,China

出　　处：《Science China Materials》2024年第1期179-187,共9页中国科学（材料科学）（英文版）

基　　金：supported by the National Natural Science Foundation of China (22275073,22005119,21731002,21975104 and 22150004);Guangdong Major Project of Basic and Applied Research (2019B030302009);Guangdong Basic and Applied Basic Research Foundation (2020A1515110404);Guangzhou Basic and Applied Basic Research Foundation (202102020444);the Fundamental Research Funds for the Central Universities (21622409)。

摘　　要：四环素是一种广泛使用的抗生素,但它在环境中难以降解,而且会促使耐药细菌的出现.因此,迫切需要采取有效的措施对其进行检测和分解.在此背景下,我们设计了一种多肉状的ZnO/MOF/Fe_(3)O_(4)混合微型马达,用于动态检测和光催化降解四环素.我们使用微纳米加工和种子生长方法成功制备了具有多肉植物状结构的ZnO微型马达.在氧化锌马达阵列上,通过表面修饰,比如改变其表面电位、负载响应性检测功能MOF、磁性纳米颗粒和催化剂,最终得到了可用于动态荧光检测和高效降解的自驱动可控微马达.这种功能性微马达在环境检测和治理等方面具有很好发展前景.Tetracycline(TC),a widely used antibiotic,poses environmental persistence and contributes substantially to the formation of drug-resistant bacteria,warranting urgent actions for effective detection and degradation.Recent pro-gress in micro/nanomotor technology has opened a compel-ling avenue,enabling active maneuverability in aqueous environments while improving interaction efficacy and func-tionality.In this study,a succulent-like ZnO/metal-organic framework(MOF)/Fe_(3)O_(4) hybrid micromotor designed for dynamic fluorescence detection and efficient photocatalytic degradation of TC is proposed.By leveraging micro-and nano-fabrication approaches and the seeded growth method,the fabrication of ZnO micromotors with succulent-like structures is realized.Notably,chemical modifications are employed to manipulate the surface potential and precisely control the motion direction of the micromotor.Further in-corporation of fluorescent MOF nanoparticles renders the micromotors capable of dynamic TC detection.Furthermore,under ultraviolet irradiation,the micromotors exhibit dy-namic TC degradation and can be conveniently recovered and reused by magnetic separation.The rational design of func-tional micromotors may offer promising platforms for various applications such as dynamic detection and environmental remediation.

关 键 词：微纳米加工 表面修饰 磁性纳米颗粒 微马达 多肉植物 检测功能 耐药细菌 环境检测 

分 类 号：X830[环境科学与工程—环境工程] TB383.1[一般工业技术—材料科学与工程] X505