期刊
ACS NANOSCIENCE AU
卷 3, 期 1, 页码 1-27出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnanoscienceau.2c00039
关键词
Electrochemical sensors; neurotransmitters; dopamine; physiological system; voltammetry technique; electrochemical detection; metal nanoparticles; conducting polymers; impedance technique
This review article discusses the application of electrochemical sensors in the analysis of neurotransmitters, focusing on the use of polymers, metallic particles, and composite materials in sensor design. Electrochemical sensors offer high sensitivity, quick reaction rate, and good controllability. Complex materials also provide unique advantages for biological detection.
A prominent neurotransmitter (NT), dopamine (DA), is a chemical messenger that transmits signals between one neuron to the next to pass on a signal to and from the central nervous system (CNS). The imbalanced concentration of DA may cause numerous neurological sicknesses and syndromes, for example, Parkinson's disease (PD) and schizophrenia. There are many types of NTs in the brain, including epinephrine, norepinephrine (NE), serotonin, and glutamate. Electrochemical sensors have offered a creative direction to biomedical analysis and testing. Researches are in progress to improve the performance of sensors and develop new protocols for sensor design. This review article focuses on the area of sensor growth to discover the applicability of polymers and metallic particles and composite materials as tools in electrochemical sensor surface incorporation. Electrochemical sensors have attracted the attention of researchers as they possess high sensitivity, quick reaction rate, good controllability, and instantaneous detection. Efficient complex materials provide considerable benefits for biological detection as they have exclusive chemical and physical properties. Due to distinctive electrocatalytic characteristics, metallic nanoparticles add fascinating traits to materials that depend on the material's morphology and size. Herein, we have collected much information on NTs and their importance within the physiological system. Furthermore, the electrochemical sensors and corresponding techniques (such as voltammetric, amperometry, impedance, and chronoamperometry) and the different types of electrodes' roles in the analysis of NTs are discussed. Furthermore, other methods for detecting NTs include optical and microdialysis methods. Finally, we show the advantages and disadvantages of different techniques and conclude remarks with future perspectives.
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