A Low-Cost Wireless Intelligent Portable Sensor Based on Disposable Laser-Induced Porous Graphene Flexible Electrode Decorated by Gold Nanoshells for Rapid Detection of Sulfonamides in Aquatic Products

被引：0
作者：
Daoyang Qiu
Xiaoqiang Wang
Yangping Wen
Yifang Zeng
Weiqiang Li
Li Zhao
Lili Chen
Jianhua Xiong
Kaijie Tang
机构：
[1] Jiangxi Agricultural University,College of Food Science and Engineering
[2] Jiangxi Agricultural University,Institute of Functional Materials and Agricultural Applied Chemistry
[3] Jiangxi Science and Technology Normal University,undefined
[4] Jiangxi Engineering Research Center of Aquatic Product Processing and Safety Control,undefined
来源：
Food Analytical Methods | 2022年 / 15卷
关键词：
Electrochemical sensor; Laser-induced porous graphene; Gold nanoshells; Flexible electrode; Portable detection; Sulfonamide;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We explored a low-cost wireless smart portable sensor based on a disposable laser-induced porous graphene (LIPG) flexible substrate electrode decorated by gold nanoshells (AuNSs) for a simple and rapid electrochemical detection of sulfonamides (SAs). The LIPG was prepared by the one-step computer-controlled laser direct-writing patterning techniques on polyimide (PI) substrate, and the AuNSs were facilely modified onto the surface of LIPG substrate electrode by the drop-coating. The electrode displayed an excellent electrochemical response towards sulfanilamide (SN) in a linear range from 0.4 to 100 μM with a low limit of detection of 0.035 μM; recovery ranges from 96.04 to 105.00% in fish and shrimp samples using the traditional large electrochemical workstation. Other three SAs were also detected, and their results were similar with SN. The portable mini electrochemical workstation with the wireless bluetooth transmission displayed better feasibility, practicability, and superiority in the rapid on-site supervision of SAs in food safety in comparison with the traditional large electrochemical workstation with the wire transmission.
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页码：1471 / 1481
页数：10
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