التفاصيل البيبلوغرافية
| العنوان: |
Electrochemical detection of glutamate by metal–organic frameworks-derived Ni@NC electrocatalysts. |
| المؤلفون: |
Xu, Yuwen1,2 (AUTHOR), Zhu, Tingting1 (AUTHOR), Niu, Yanhong1 (AUTHOR), Ye, Bang-Ce1,2 (AUTHOR) bcye@ecust.edu.cn |
| المصدر: |
Microchemical Journal. Apr2022, Vol. 175, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*GLUTAMIC acid, *ELECTROCHEMICAL sensors, *CARBON electrodes, *AMINO group, *ELECTROCATALYSTS, *CYCLIC voltammetry |
| مستخلص: |
[Display omitted] • The work on using synthesis of MOF-derived (modified with amino groups) Ni@NC materials to modify glass carbon electrode (GCE) was first reported. • The decorated electrode (Ni@NC/GCE) showed great charge-transfer ability and excellent electrocatalytic activity towards the oxidation of glutamate. • The glutamate sensor exhibits an ultralow detection limit of 1.67 × 10−3 μM. • The prepared sensor exhibits excellent practicability and reliability. With the aim of developing an electrochemical sensor for the detection of glutamate, in the present study, Ni@NC nanoparticles were prepared by embedding Ni derived from Ni-based metal–organic frameworks in N-enriched carbon via a high-temperature calcination process. Further, the resulting material was investigated as an electrode modifier for sensor applications. Cyclic voltammetry measurements revealed that the Ni@NC nanoparticles prepared at 700 °C exhibited the most prominent activity for the electrocatalytic oxidation of glutamate, affording an amperometric response in a linear range of glutamate concentration of 5 × 10−3–500 μM with a low detection limit of 1.67 × 10−3 μM (S/N = 3), which was comparable with previously reported data. Furthermore, this electrochemical sensor demonstrated a high rate of recovery in real samples, providing a valuable method for the rapid detection of glutamate. As a potential candidate for glutamate sensing, the Ni@NC system can be expected to find application in many biomedical fields. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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