Graphene oxide quantum dots enable biosensing of depression biomarkers
University of Delhi researchers have developed an environmentally friendly method to synthesize graphene oxide quantum dots (GO QDs) for use in ultrasensitive biosensors capable of detecting key neurological biomarkers such as dopamine and serotonin. The team’s novel approach employs citric acid as a green, biodegradable precursor, successfully producing uniform, negatively charged GO QDs with an average diameter of 23.4 nm.
The synthesized GO QDs were thoroughly characterized using UV-Visible spectroscopy, Fourier-transform infrared spectroscopy (FTIR), high-resolution X-ray diffraction (HR-XRD), and dynamic light scattering (DLS). The data confirmed the formation of pure, spherical QDs with well-defined structural integrity and optical stability, indicating precise control over quantum confinement and surface functionality.
Source: https://www.graphene-info.com/graphene-oxide-quantum-dots-enable-biosensing-depression-biomarkers
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