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electrochemical nanozyme sensor based on mos2-cooh-mwcnt nanohybrid for a new plant growth regulator 5-nitroguaiacol
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نویسنده
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lu xinyu ,liu guixia ,di peiwen ,li yingying ,xue ting ,duan xuemin ,wen yangping ,zhu yifu ,cai yue ,xu quan ,xu jingkun
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منبع
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food analytical methods - 2020 - دوره : 13 - شماره : 11 - صفحه:2028 -2038
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چکیده
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A nanozyme sensor consisted of both carbonylated multi-walled carbon nanotubes (cooh-mwcnt) and two-dimensional layered molybdenum disulfide (mos2) nanosheets for the sensitive detection of 5-nitroguaiacol sodium (5-ng) in tomato and broiler feed under the optimal conditions was successfully developed. mos2-cooh-mwcnt nanohybrid was simply obtained by ultrasonic preparation in presence of nafion. the mos2-cooh-mwcnt film was characterized, and parameters of their film electrodes such as ph, scan rates, the percentage content of nafion (nf), and the ratio between cooh-mwcnt and mos2 were optimized. the mos2-cooh-mwcnt nanohybrid was used to detect 5-ng in tomato and broiler feed, and their recoveries were 102.22 and 93.2%, respectively. the electrocatalytic oxidation mechanism of 5-ng and oxidase-like (nanozyme) kinetics of mos2-cooh-mwcnt nanohybrid were investigated. the fabricated nanozyme sensor displayed good electrochemical responses, wide linear ranges of 0.1–70 μm with limit of detection (lod) 0.02 μm, unique oxidase-like characteristics, and good practicability, which will provide a new sensing platform based on inorganic nanomaterials with enzyme-like (nanozyme) characteristics for the determination of 5-ng in plant-derived agro-products and/or plant-derived animal feeds.
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کلیدواژه
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5-nitroguaiacol sodium ,nanohybrid sensor ,electrochemical detection ,theory calculation
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آدرس
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jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, east china university of science and technology, school of pharmacy, shanghai key laboratory of new drug design, people’s republic of china, east china university of science and technology, school of pharmacy, shanghai key laboratory of new drug design, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china, jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. jiangxi agricultural university, institute of functional materials and agricultural applied chemistry, people’s republic of china, jiangxi science & technology normal university, school of pharmacy, jiangxi provincial key laboratory of drug design and evaluation, people’s republic of china. qingdao university of science & technology, college of chemistry and molecular engineering, people’s republic of china
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Authors
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