Graphene quantum dots as optical-electrochemical dual mode-biosensors for the detection of dopamine and serotonin biomarkers of depression

Key Points

• Detection of dopamine and serotonin is achieved through innovative biosensors utilizing graphene quantum dots, offering dual sensing capabilities.
• Key findings indicate enhanced sensitivity and specificity in measuring neurochemical markers associated with depression.
• Assessment using optical-electrochemical dual mode highlights the potential of graphene quantum dots in biomedical applications.
• Results may enable the development of rapid, reliable tools for diagnosing depression through biomarker screening.