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Detection of toxic choline based on Mn2O3/NiO nanomaterials by an electrochemical method

机译：基于Mn2O3 / NiO纳米材料的电化学方法检测毒性胆碱

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摘要

In this study, a novel in situ choline sensor was assembled by attaching the binary Mn2O3/NiO nanoparticles (NPs) onto a glassy carbon electrode (GCE). Initially, Mn2O3/NiO NPs were synthesized via a wet-chemical process and fully characterized via XRD, XPS, FESEM, EDS, FTIR and UV-Vis methods. The analytical performances of the choline sensor were evaluated by an electrochemical method in the phosphate buffer phase. The estimated linear dynamic range (LDR) was found to be 0.1 nM to 0.1 mM. The other analytical performances of the choline sensor, such as sensitivity (16.4557 mu A mu M-1 cm(-2)) and detection limit (5.77 +/- 0.29 pM), were also calculated very carefully from the calibration plot. Overall, the choline sensor exhibited a reliable reproducibility, in situ validity, selectivity, interference effect, stability, and intra-day and inter-day performances with high accuracy in a short response time. Moreover, the probe was successfully applied to detect choline in real human, mouse and rabbit serum. This fabrication route would be a novel approach for the detection of selective biochemical sensor in the healthcare and biomedical fields.
机译：在该研究中，通过将二元Mn 2 O 3 / NiO纳米颗粒（NPS）连接到玻璃状碳电极（GCE）上，组装了一种新的原位胆碱传感器。最初，通过湿化学过程合成Mn2O3 / NiO NP，并通过XRD，XPS，FESEM，EDS，FTIR和UV-VIS方法完全表征。通过磷酸盐缓冲相中的电化学方法评估胆碱传感器的分析性能。发现估计的线性动态范围（LDR）被发现为0.1nm至0.1mm。胆碱传感器的其他分析性能，例如灵敏度（16.4557μmM-1cm（-2））和检测极限（5.77 +/- 0.29m）也从校准图仔细计算。总体而言，胆碱传感器在短响应时间内表现出可靠的再现性，原位有效性，选择性，干扰效应，稳定性和日内和日内的性能，具有高精度。此外，探针成功地应用于检测真人，小鼠和兔血清中的胆碱。该制造途径是一种用于检测医疗保健和生物医学领域的选择性生化传感器的新方法。

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    《RSC Advances》 |2019年第60期|共12页
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  • 正文语种 eng
  • 中图分类 化学;
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