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首页> 外文期刊>RSC Advances >An electronic tongue based on conducting electrospun nanofibers for detecting tetracycline in milk samples
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An electronic tongue based on conducting electrospun nanofibers for detecting tetracycline in milk samples

机译：一种基于电纺纳料检测牛奶样品四环素的电子舌

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摘要

The development of novel and portable chemical sensors aimed at the food industry is of prime importance for food safety issues, and nanomaterial science can greatly contribute to this task. In this context, a careful choice of the sensing material is essential for achieving high performance sensor arrays, such as those employed in nanostructured electronic tongues (e-tongues). In the current work, an impedimetric e-tongue based on gold interdigitated microelectrodes (IDEs) modified with polyamide 6/polyaniline (PA6/PANI) electrospun nanofibers was developed, characterized and used to detect tetracycline (TC) residue in fat and skimmed milk samples. By analyzing the electrical resistance data collected by the e-tongue, which were treated by Principal Component Analysis (PCA), the e-tongue was able to identify the presence of TC residues (from 1 to 300 ppb) in fat and skimmed milk samples. The results obtained demonstrate the ability of the approach of modifying IDEs with conducting electrospun nanofibers to be used as sensing units in the e-tongue, aiming to analyze complex matrices such as milk without any prior pre-treatment.
机译：针对食品行业的新型和便携式化学传感器的开发是对食品安全问题的重要性，纳米材料可以大大贡献这项任务。在这种情况下，仔细选择感测材料对于实现高性能传感器阵列是必不可少的，例如以纳米结构电子舌（电子舌）采用的那些。在当前工作中，开发了一种基于用聚酰胺6 /聚苯胺（PA6 / PANI）电纺纳米纤维改性的金叉指微电极（IDES）的阻抗型舌头，其特征和用于检测脂肪和脱脂牛奶样品中的四环素（TC）残留物。通过分析通过主成分分析（PCA）处理的e-舌法收集的电阻数据，电子舌能够鉴定脂肪和脱脂牛奶样品中Tc残基（1至300 ppb）的存在。所获得的结果证明了改变IDE的方法的能力，该方法用电纺纳米纤维被用作电子舌中的传感单元，旨在分析诸如牛奶的复杂基质而无需任何现有的预处理。

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  • 来源
    《RSC Advances》 |2016年第105期|共7页
  • 作者

    Scagion Vanessa P.; Mercante Luiza A.; Sakamoto Karine Y.; Oliveira Juliano E.; Fonseca Fernando J.; Mattoso Luiz H. C.; Ferreira Marcos D.; Correa Daniel S.;

  • 作者单位

    Embrapa Instrumentacao Natl Lab Nanotechnol Agribusiness LNNA BR-13560970 Sao Carlos SP Brazil;

    Embrapa Instrumentacao Natl Lab Nanotechnol Agribusiness LNNA BR-13560970 Sao Carlos SP Brazil;

    Embrapa Instrumentacao Natl Lab Nanotechnol Agribusiness LNNA BR-13560970 Sao Carlos SP Brazil;

    Fed Univ Lavras UFLA Dept Engn Mat Engn BR-37200000 Lavras MG Brazil;

    Univ Sao Paulo EPUSP Polytech Sch BR-05508010 Sao Paulo SP Brazil;

    Embrapa Instrumentacao Natl Lab Nanotechnol Agribusiness LNNA BR-13560970 Sao Carlos SP Brazil;

    Embrapa Instrumentacao Natl Lab Nanotechnol Agribusiness LNNA BR-13560970 Sao Carlos SP Brazil;

    Embrapa Instrumentacao Natl Lab Nanotechnol Agribusiness LNNA BR-13560970 Sao Carlos SP Brazil;

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  • 正文语种 eng
  • 中图分类 化学;
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