• • Detection limits of 0.5 μM for dopamine and 0.8 μM for serotonin were achieved, enabling quantification of basal neurotransmitter levels in microdialysis samples.
• • The sensor exhibited a linear range from 1 μM to 100 μM (R² > 0.99), covering the physiological and pathological concentration ranges for neurological studies.
• • Reproducibility was excellent with RSD < 5% across 10 consecutive measurements, ensuring reliable batch-to-batch consistency for clinical or industrial deployment.
• • Stability was maintained over 30 days of storage, with only a 5% signal decay, supporting long-term use in continuous monitoring applications.