Electrochemical Sensor for Tryptophan Determination Based on Trimetallic-CuZnCo-Nanoparticle-Modified Electrodes

Autor: Adina Arvinte, Ana-Lacramioara Lungoci, Adina Coroaba, Mariana Pinteala
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Molecules, Vol 29, Iss 1, p 28 (2023)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules29010028
Popis: The superior properties of electrodeposited trimetallic CuZnCo nanoparticles, arising from the synergistic effect of combining the unique features of metallic components, were confirmed using voltametric measurements. The surface morphology and structure of the as-prepared electrocatalysts were determined using scanning electron microscopy, energy-dispersive X-ray, and X-ray photoelectron spectroscopy techniques. Here, the trimetallic CuZnCo nanoparticles were synthesized as a powerful redox probe and highly efficient signal amplifier for the electrochemical oxidation of tryptophan. Differential pulse voltammetry studies showed a linear relationship with a tryptophan concentration of 5–230 μM, and the low detection limit was identified at 1.1 μM with a sensitivity of 0.1831 μA μM−1 cm−2.
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