{"title":"A magnetic plasma Fe<sub>3</sub>O<sub>4</sub>@Cu@Cu<sub>2</sub>O photoelectrochemical sensor for the detection of fumonisin B1.","authors":"Xiaodong Xue, Yanqiu Leng, Yanmei Li, Jinhuan Zhang","doi":"10.1039/d4ay00971a","DOIUrl":null,"url":null,"abstract":"<p><p>Fumonisin B1 (FB1) is a mycotoxin, a water-soluble metabolite produced by <i>Fusarium cepacia</i>, which mainly contaminates grain and its products and is acutely toxic and potentially carcinogenic to certain domestic animals. In this work, plasma nanocomposites of Fe<sub>3</sub>O<sub>4</sub>@Cu@Cu<sub>2</sub>O with magnetic and optoelectronic properties were synthesized as a sensing platform. On one hand, the surface plasmon resonance (SPR) of metallic Cu accelerates the electron transfer rate. On the other hand, plasma-induced resonance energy transfer of metals and semiconductors can improve the utilization efficiency of light energy. A split photoelectrochemical (PEC) sensor based on Fe<sub>3</sub>O<sub>4</sub>@Cu@Cu<sub>2</sub>O was proposed for the detection of FB1. The sensor has a wide linear range of 1.0-10 000 pg mL<sup>-1</sup> and a low detection limit of 0.28 pg mL<sup>-1</sup> (LOD, S/N = 3), which can realize the specific detection of FB1 in real samples.</p>","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analytical Methods","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4ay00971a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Fumonisin B1 (FB1) is a mycotoxin, a water-soluble metabolite produced by Fusarium cepacia, which mainly contaminates grain and its products and is acutely toxic and potentially carcinogenic to certain domestic animals. In this work, plasma nanocomposites of Fe3O4@Cu@Cu2O with magnetic and optoelectronic properties were synthesized as a sensing platform. On one hand, the surface plasmon resonance (SPR) of metallic Cu accelerates the electron transfer rate. On the other hand, plasma-induced resonance energy transfer of metals and semiconductors can improve the utilization efficiency of light energy. A split photoelectrochemical (PEC) sensor based on Fe3O4@Cu@Cu2O was proposed for the detection of FB1. The sensor has a wide linear range of 1.0-10 000 pg mL-1 and a low detection limit of 0.28 pg mL-1 (LOD, S/N = 3), which can realize the specific detection of FB1 in real samples.
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