Hierarchical core-shell structured NiS/NiMoO nanowires: a high-performance and reusable electrochemical sensor for glucose detection
Designing highly active electrode is important for the fabrication of electrochemical sensing platforms, and core-shell nanostructures with large specific surface areas and ease of accessibility are effective probes for the detection of biomolecules. In this work, we report the development of hierar...
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Published in | Analyst (London) Vol. 144; no. 16; pp. 4925 - 4934 |
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Main Authors | , , , , , , |
Format | Journal Article |
Published |
05.08.2019
|
Online Access | Get full text |
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Abstract | Designing highly active electrode is important for the fabrication of electrochemical sensing platforms, and core-shell nanostructures with large specific surface areas and ease of accessibility are effective probes for the detection of biomolecules. In this work, we report the development of hierarchical core-shell Ni
3
S
2
/NiMoO
4
nanowires on a nickel foam substrate (Ni-Ni
3
S
2
/NiMoO
4
) as a non-noble metal catalyst electrode for the electrochemical oxidation of glucose in alkaline electrolyte. As an electrochemical sensor for glucose detection, the fabricated hierarchical Ni-Ni
3
S
2
/NiMoO
4
core-shell nanowires display an enhanced catalytic response, a fast response time of 1 s with a limit of detection (LOD) of 0.055 μM (S/N = 3), and a higher sensitivity of 10.49 μA μM
−1
cm
−2
. Unlike Ni
3
S
2
or NiMoO
4
electrodes, the observed superior catalytic activity towards glucose is mainly due to the promotional effect of NiMoO
4
nanosheets on the Ni
3
S
2
nanowires, which can increase the large active surface area and generate numerous active sites within and on the surface walls of the nanowire structures. The developed Ni-Ni
3
S
2
/NiMoO
4
nanowire electrode can selectively detect glucose in the presence of other carbohydrates, such as fructose, sucrose, lactose, maltose, galactose, mannose, and xylose, indicating potential anti-interference properties. The Ni-Ni
3
S
2
/NiMoO
4
nanowire electrode is highly stable for reuse and its practical application is demonstrated using real blood serum samples. These results demonstrate that hierarchical core-shell Ni
3
S
2
/NiMoO
4
nanowires show potential for application in the development of low-cost applied glucose sensors.
The electro-oxidation of glucose occurred at the surface of hierarchical core-shell Ni
3
S
2
/NiMoO
4
nanowires. |
---|---|
AbstractList | Designing highly active electrode is important for the fabrication of electrochemical sensing platforms, and core-shell nanostructures with large specific surface areas and ease of accessibility are effective probes for the detection of biomolecules. In this work, we report the development of hierarchical core-shell Ni
3
S
2
/NiMoO
4
nanowires on a nickel foam substrate (Ni-Ni
3
S
2
/NiMoO
4
) as a non-noble metal catalyst electrode for the electrochemical oxidation of glucose in alkaline electrolyte. As an electrochemical sensor for glucose detection, the fabricated hierarchical Ni-Ni
3
S
2
/NiMoO
4
core-shell nanowires display an enhanced catalytic response, a fast response time of 1 s with a limit of detection (LOD) of 0.055 μM (S/N = 3), and a higher sensitivity of 10.49 μA μM
−1
cm
−2
. Unlike Ni
3
S
2
or NiMoO
4
electrodes, the observed superior catalytic activity towards glucose is mainly due to the promotional effect of NiMoO
4
nanosheets on the Ni
3
S
2
nanowires, which can increase the large active surface area and generate numerous active sites within and on the surface walls of the nanowire structures. The developed Ni-Ni
3
S
2
/NiMoO
4
nanowire electrode can selectively detect glucose in the presence of other carbohydrates, such as fructose, sucrose, lactose, maltose, galactose, mannose, and xylose, indicating potential anti-interference properties. The Ni-Ni
3
S
2
/NiMoO
4
nanowire electrode is highly stable for reuse and its practical application is demonstrated using real blood serum samples. These results demonstrate that hierarchical core-shell Ni
3
S
2
/NiMoO
4
nanowires show potential for application in the development of low-cost applied glucose sensors.
The electro-oxidation of glucose occurred at the surface of hierarchical core-shell Ni
3
S
2
/NiMoO
4
nanowires. |
Author | Kannan, Palanisamy Ji, Shan Subramanian, Palaniappan Wang, Hui Chen, Fangshuai Jiang, Huasheng Wang, Rongfang |
AuthorAffiliation | Chemical Sciences and Engineering Qingdao University of Science and Technology Jiaxing University KU Leuven College of Chemical Engineering College of Biological Department of Materials Engineering |
AuthorAffiliation_xml | – name: Jiaxing University – name: KU Leuven – name: Qingdao University of Science and Technology – name: Chemical Sciences and Engineering – name: College of Chemical Engineering – name: College of Biological – name: Department of Materials Engineering |
Author_xml | – sequence: 1 givenname: Palanisamy surname: Kannan fullname: Kannan, Palanisamy – sequence: 2 givenname: Fangshuai surname: Chen fullname: Chen, Fangshuai – sequence: 3 givenname: Huasheng surname: Jiang fullname: Jiang, Huasheng – sequence: 4 givenname: Hui surname: Wang fullname: Wang, Hui – sequence: 5 givenname: Rongfang surname: Wang fullname: Wang, Rongfang – sequence: 6 givenname: Palaniappan surname: Subramanian fullname: Subramanian, Palaniappan – sequence: 7 givenname: Shan surname: Ji fullname: Ji, Shan |
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Title | Hierarchical core-shell structured NiS/NiMoO nanowires: a high-performance and reusable electrochemical sensor for glucose detection |
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