RT journal article
T1 A Sensitive Electrochemical Sensor Based on Sonogel-Carbon Material Enriched with Gold Nanoparticles for Melatonin Determination
A1 Lete, Cecilia
A1 López-Iglesias, David
A1 García Guzmán, Juan José
A1 Leau, Sorina-Alexandra
A1 Stanciu, Adina Elena
A1 Marin, Mariana
A1 Palacios Santander, José María
A1 Lupu, Stelian
A1 Cubillana Aguilera, Laura
A2 Química Analítica
K1 Sonogel-Carbon electrode material
K1 Au nanoparticles
K1 poly(3,4-ethylenedioxythiophene)
K1 electrochemical sensor
K1 melatonin
AB In this work, the development of an electrochemical sensor for melatonin determination ispresented. The sensor was based on Sonogel-Carbon electrode material (SNGCE) and Au nanoparticles(AuNPs). The low-cost and environmentally friendly SNGCE material was prepared by theultrasound-assisted sonogel method. AuNPs were prepared by a chemical route and narrow sizedistribution was obtained. The electrochemical characterization of the SNGCE/AuNP sensor wascarried out by cyclic voltammetry in the presence of a redox probe. The analytical performance ofthe SNGCE/AuNP sensor in terms of linear response range, repeatability, selectivity, and limit ofdetection was investigated. The optimized SNGCE/AuNP sensor displayed a low detection limitof 8.4 nM melatonin in synthetic samples assessed by means of the amperometry technique. Thepotential use of the proposed sensor in real sample analysis and the anti-matrix capability wereassessed by a recovery study of melatonin detection in human peripheral blood serum with goodaccuracy.
PB MDPI
SN 1424-8220
YR 2022
FD 2022-01
LK http://hdl.handle.net/10498/26470
UL http://hdl.handle.net/10498/26470
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026