Electrochemical sensing of tetracycline based on Au NPs@MoS2/Ch hybrid structures

被引：23
作者：
Dong, Wenxia [1 ,4 ]
Wen, Haoxiang [2 ]
Du, Xiaoyu [1 ]
Li, Li [3 ]
Li, Zhongping [1 ]
机构：
[1] Shanxi Univ, Inst Environm Sci, Sch Chem & Chem Engn, Taiyuan 030006, Peoples R China
[2] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Peoples R China
[3] Shanxi Med Univ, Hosp 1, Taiyuan 030001, Peoples R China
[4] Shanxi Normal Univ, Taiyuan 030031, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2022年 / 923卷
基金：
中国国家自然科学基金;
关键词：
Au NPs@MoS2; Ch; Electrochemical sensors; Tetracycline; ULTRASENSITIVE DETECTION; NANOPARTICLES; CARBON; COMPOSITE; PLATFORM;
D O I：
10.1016/j.jelechem.2022.116807
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
As a broad-spectrum antibiotic, tetracycline (TC) has a wide range in the treatment of diseases and feed addi-tives. Molybdenum disulfide (MoS2) is becoming more and more popular in terms of electrochemical sensing. So as to improve the sensitivity, AuNPs@MoS2 is coated on the electrode surface by combining with chitosan (Ch) to improve the conductivity. Under optimized conditions, this assay has high sensitivity and excellent lin-ear response for detection TC. That covers the 1-1000 mu M and 5-1100 mu M tetracycline (TC) concentration range with a 0.41 mu M limit of detection. In addition, the sensor may become a promising new strategy for detecting tetracycline in milk samples. This study develop an unusual analytical chemistry method for the development of various challenging electrochemical sensors.
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页数：7
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