▎ 摘　　要

The use of hexagonal boron nitride quantum dots (hBN QDs) as an electrochemical sensor for ferritin is reported for the first time. These QDs were synthesized using a simple liquid exfoliation method. The synthesized material was characterized using analytical techniques such as UV-visible, Fourier transform infrared (FTIR) and Raman spectroscopy, X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HR-TEM) to study different aspects of the QDs. These QDs were explored for their plausible application as a platform for the electrochemical detection of ferritin. For this, electrochemical impedance spectroscopy was used as a sensing technique and disposable hBN QD functionalized screen printed electrodes were used as a sensing platform. The developed immunosensor had a dynamic linear range from 10-2000 ng mL(-1) of ferritin concentration with a limit of detection of 1.306 ng mL(-1). The immunosensor was highly selective, did not deviate in the presence of interfering agents and was also highly reproducible.