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The fabrication of an Ni6MnO8 nanoflake-modified acupuncture needle electrode for highly sensitive ascorbic acid detection

机译:用于高敏感抗坏血酸检测的Ni6mNO8纳米酚改性针刺电极的制备

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摘要

The current work describes the use of a steel acupuncture needle as an electrode substrate in order to construct an Ni6MnO8 nanoflake layer-modified microneedle sensor for highly sensitive ascorbic acid detection. For the purpose of constructing the functionalized acupuncture needle, first, a carbon film was layered on the needle surface as the seed layer. Subsequently, a straightforward hydrothermal reaction-calcination process was employed for the growth of Ni6MnO8 nanoflakes on the needle to function as a sensing interface. Electrochemical investigations illustrated the fact that the Ni6MnO8 nanoflake-altered acupuncture needle electrode manifested outstanding efficiency toward the amperometric identification of ascorbic acid. In addition, the electrode manifested elevated sensitivity of 3106 mu A mM(-1) cm(-2), detection limit of 0.1 mu M, and a broad linear range between 1.0 mu M and 2.0 mM. As demonstrated by the results, the Ni6MnO8 nanoflake-modified acupuncture needle constitutes a potentially fresh platform to construct non-enzymatic ascorbic acid sensors.
机译:目前的工作描述了使用钢针针作为电极基材的用途,以构建用于高敏感的抗坏血酸检测的Ni6mNO8纳米蛋白改性微针传感器。为了构建官能化针灸针,首先,将碳膜作为种子层层叠在针表面上。随后,采用直接的水热反应煅烧方法用于针对针上的Ni6MnO8纳米薄片的生长,以用作传感界面。电化学研究表明,Ni6MNO8纳米辊改变的针灸针电极表现出朝向抗坏血酸的浓度鉴定的出色效率。另外,电极表现出升高的灵敏度3106μmmm(-1)cm(-2),检测极限为0.1μm,并且宽线性范围在1.0 mu m和2.0mm之间。如结果所示,Ni6MNO8纳米酚改性的针灸针构成潜在的新平台,以构建非酶促抗坏血酸传感器。

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    《RSC Advances》 |2019年第46期|共7页
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  • 正文语种 eng
  • 中图分类 化学;
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