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Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues

A novel nano/micro-structured pesticide detection card was developed by combining electrospinning and hydrophilic modification, and its feasibility for detecting different pesticides was investigated. Here, the plain and hydrophilic-modified poly(ε-caprolactone) (PCL) fiber mats were used for the ab...

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Autores principales: Feng, Kun, Zhai, Meng-Yu, Wei, Yun-Shan, Zong, Min-Hua, Wu, Hong, Han, Shuang-Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073816/
https://www.ncbi.nlm.nih.gov/pubmed/33921560
http://dx.doi.org/10.3390/foods10040889
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author Feng, Kun
Zhai, Meng-Yu
Wei, Yun-Shan
Zong, Min-Hua
Wu, Hong
Han, Shuang-Yan
author_facet Feng, Kun
Zhai, Meng-Yu
Wei, Yun-Shan
Zong, Min-Hua
Wu, Hong
Han, Shuang-Yan
author_sort Feng, Kun
collection PubMed
description A novel nano/micro-structured pesticide detection card was developed by combining electrospinning and hydrophilic modification, and its feasibility for detecting different pesticides was investigated. Here, the plain and hydrophilic-modified poly(ε-caprolactone) (PCL) fiber mats were used for the absorption of indolyl acetate and acetylcholinesterase (AChE), respectively. By pre-treating the fiber mat with ethanol, its surface wettability was improved, thus, promoting the hydrolysis of the PCL fiber mat. Furthermore, the absorption efficiency of AChE was improved by almost two times due to the increased hydrophilicity of the modified fiber mat. Noteworthily, this self-made detection card showed a 5-fold, 2-fold, and 1.5-fold reduction of the minimum detectable concentration for carbofuran, malathion, and trichlorfon, respectively, compared to the national standard values. Additionally, it also exhibited good stability when stored at 4 °C and room temperature. The food detection test showed that this nano/micro-based detection card had better detectability than the commercial detection card. Therefore, this study offers new insights into the design of pesticide detection cards, which also broadens the application of electrospinning technique.
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spelling pubmed-80738162021-04-27 Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues Feng, Kun Zhai, Meng-Yu Wei, Yun-Shan Zong, Min-Hua Wu, Hong Han, Shuang-Yan Foods Article A novel nano/micro-structured pesticide detection card was developed by combining electrospinning and hydrophilic modification, and its feasibility for detecting different pesticides was investigated. Here, the plain and hydrophilic-modified poly(ε-caprolactone) (PCL) fiber mats were used for the absorption of indolyl acetate and acetylcholinesterase (AChE), respectively. By pre-treating the fiber mat with ethanol, its surface wettability was improved, thus, promoting the hydrolysis of the PCL fiber mat. Furthermore, the absorption efficiency of AChE was improved by almost two times due to the increased hydrophilicity of the modified fiber mat. Noteworthily, this self-made detection card showed a 5-fold, 2-fold, and 1.5-fold reduction of the minimum detectable concentration for carbofuran, malathion, and trichlorfon, respectively, compared to the national standard values. Additionally, it also exhibited good stability when stored at 4 °C and room temperature. The food detection test showed that this nano/micro-based detection card had better detectability than the commercial detection card. Therefore, this study offers new insights into the design of pesticide detection cards, which also broadens the application of electrospinning technique. MDPI 2021-04-19 /pmc/articles/PMC8073816/ /pubmed/33921560 http://dx.doi.org/10.3390/foods10040889 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Feng, Kun
Zhai, Meng-Yu
Wei, Yun-Shan
Zong, Min-Hua
Wu, Hong
Han, Shuang-Yan
Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues
title Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues
title_full Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues
title_fullStr Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues
title_full_unstemmed Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues
title_short Fabrication of Nano/Micro-Structured Electrospun Detection Card for the Detection of Pesticide Residues
title_sort fabrication of nano/micro-structured electrospun detection card for the detection of pesticide residues
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8073816/
https://www.ncbi.nlm.nih.gov/pubmed/33921560
http://dx.doi.org/10.3390/foods10040889
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