Dopamine neurotransmitter determination using a graphite sheet–graphene nano-sensor

What is it about?

This study has to do with a highly sensitive and cost-effective sensor used for dopamine sensing. The efficiency of dopamine detection by this modified electrode was evaluated using cyclic voltammetry, differential pulse voltammetry, and electrochemical impedance spectroscopy. Furthermore, the chronoamperometry technique was performed for the stability test.

Featured Image

Photo by Bioscience Image Library by Fayette Reynolds on Unsplash

Photo by Bioscience Image Library by Fayette Reynolds on Unsplash

Why is it important?

Due to the importance of dopamine and its related disorders, accurate quantification of dopamine levels in the body is crucial for the prevention, diagnosis, monitoring, and treatment of diseases. This nanosensor takes advantage of a simple and rapid fabrication process at a low cost.

Perspectives

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Due to dopamine’s involvement in several biological and neurological functions, exact measurement is vital in cases concerning Alzheimer’s and Parkinson’s diseases. A straightforward, low-cost sensor with high sensitivity and a simple fabrication process could significantly improve the diagnosis and treatment of these conditions. Although the materials used in this project were not expensive, it is remarkable that the sensor's linear range and detection limit are highly comparable to those reported in other reports.

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