Intertwined Carbon Nanotubes and Ag Nanowires Constructed by Simple Solution Blending as Sensitive and Stable Chloramphenicol Sensors

Sensors

卷:21

Yuting Xu¹  Li Fu¹  Aimin Yu²  Guosong Lai³  Hai Chi⁴  Lidong Wu⁵  Chen Ye⁶  Cheng-Te Lin⁶  Nan Jiang⁶  Xiufen Li⁷  Yangguang Zhu⁷  Qiuping Wei⁸ 

[1] College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;

[2] Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia;

[3] Department of Chemistry, Hubei Normal University, Huangshi 435002, China;

[4] East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China;

[5] Key Laboratory of Control of Quality and Safety for Aquatic Products, Chinese Academy of Fishery Sciences, Beijing 100141, China;

[6] Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China;

[7] Laboratory of Environmental Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China;

[8] School of Materials Science and Engineering, Central South University, Changsha 410083, China;

关键词: chloramphenicol;    carbon nanotubes;    silver nanowires;    electrochemical sensor;    voltammetric detection;   

DOI  :  10.3390/s21041220

来源: DOAJ

【 摘 要 】

Chloramphenicol (CAP) is a harmful compound associated with human hematopathy and neuritis, which was widely used as a broad-spectrum antibacterial agent in agriculture and aquaculture. Therefore, it is significant to detect CAP in aquatic environments. In this work, carbon nanotubes/silver nanowires (CNTs/AgNWs) composite electrodes were fabricated as the CAP sensor. Distinguished from in situ growing or chemical bonding noble metal nanomaterials on carbon, this CNTs/AgNWs composite was formed by simple solution blending. It was demonstrated that CNTs and AgNWs both contributed to the redox reaction of CAP in dynamics, and AgNWs was beneficial in thermodynamics as well. The proposed electrochemical sensor displayed a low detection limit of up to 0.08 μM and broad linear range of 0.1–100 μM for CAP. In addition, the CNTs/AgNWs electrodes exhibited good performance characteristics of repeatability and reproducibility, and proved suitable for CAP analysis in real water samples.

【 授权许可】

Unknown