Document Type : Original Article
Authors
1
Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
2
Department of Addiction Studies, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
3
Clinical Research Development Unit-Matini/Kargarnejad Hospital, Kashan University of Medical Sciences, Kashan, Iran
4
1 Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
5
Department of Chemistry, Faculty of Science, Electrochemical Sensors Research Laboratory, Shahid Rajaee Teacher Training University, Lavizan, P.O. Box 1678815811, Tehran, Iran
6
Autoimmune Diseases Research Center, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran
7
Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg, Freiberg 09599, Germany
8
Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
Abstract
The goal of this study is to establish a simple and convenient co-precipitation approach for the ultrasonic synthesis of NiMoO4/Mn(VO3)2 heterostructures without capping agents and to adapt the glassy carbon electrode with this material for electrochemical detection of dopamine. To analyze the chemical structure and morphology of nanostructures, field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) techniques were used. The ultrasonic wave for pure NiMoO4/Mn(VO3)2 heterostructures with homogeneous sphere-like shape and small particle size around 30-40 nm was discovered using FESEM and XRD results. Electrochemical sensors have been sought after for studying biological, environmental, and pharmaceutical species due to their long-term reliability, high sensitivity, and accuracy, as well as their low cost, speed, and ease of shrinking. Differential pulse voltammetry (DPV) and cyclic voltammetry (CV) were used to conduct electrochemical experiments of the GCE/NiMoO4/Mn(VO3)2 towards dopamine (DA) detection. According to the DPV results, the modified sensor revealed a linear concentration range of 1 to 60 μM with a limit of detection of 0.33 M and high selectivity.
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