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Title: Non-enzymatic amperometric glucose sensor based on carbon nanodots and copper oxide nanocomposites electrode
Authors: Tharinee Sridara
Jantima Upan
Gopalan Saianand
Adisorn Tuantranont
Chanpen Karuwan
Jaroon Jakmunee
Keywords: Biochemistry, Genetics and Molecular Biology
Physics and Astronomy
Issue Date: 1-Feb-2020
Abstract: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. In this research work, a non-enzymatic amperometric sensor for the determination of glucose was designed based on carbon nanodots (C-dots) and copper oxide (CuO) nanocomposites (CuO-C-dots). The CuO-C-dots nanocomposites were modified on the surface of a screen-printed carbon electrode (SPCE) to increase the sensitivity and selectivity of the glucose sensor. The as-synthesized materials were further analyzed for physico-chemical properties through characterization tools such as transmission electron microscopy (TEM) and Fourier-transform infrared spectroscopy (FTIR); and their electrochemical performance was also studied. The SPCE modified with CuO-C-dots possess desirable electrocatalytic properties for glucose oxidation in alkaline solutions. Moreover, the proposed sensing platform exhibited a linear range of 0.5 to 2 and 2 to 5 mM for glucose detection with high sensitivity (110 and 63.3 µA mM−1 cm−2), and good selectivity and stability; and could potentially serve as an effective alternative method of glucose detection.
ISSN: 14248220
Appears in Collections:CMUL: Journal Articles

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