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oai:riuma.uma.es:10630/403392026-02-03T11:21:32Zcom_10630_2254col_10630_37953

Montoro-Leal, Pablo López Guerrero, María del Mar Mena Herrera, Lourdes Vereda-Alonso, Elisa Isabel Ruiz-Sánchez, Antonio Jesús Jiménez Pérez, Rebeca 2025-10-20T11:41:49Z 2025-10-20T11:41:49Z 2025-10-10 Montoro-Leal, P., Lopez Guerrero, M.d.M., Mena-Herrera, L. et al. Selective electrochemical sensor for bisphenol A detection in wastewater using molecularly imprinted polymers on sustainable magnetic graphene oxide. Microchim Acta 192, 721 (2025). https://doi.org/10.1007/s00604-025-07577-0 https://hdl.handle.net/10630/40339 10.1007/s00604-025-07577-0 A modified screen-printed carbon electrode (SPCE) has been developed for the determination of bisphenol A (BPA), a compound widely used in plastics and resins production which can disrupt endocrine and reproductive human systems. Magnetic graphene oxide (MGO) was synthesized following a sustainable protocol based on mechanochemistry. Then, MGO was combined with a molecularly imprinted pyrrole-based polymer (MIPPy) for the preparation of a novel magnetic nanocomposite (BPA@MIPPy), being characterized by several imaging, spectroscopic and electrochemical techniques. The magnetic properties of BPA@MIPPy allowed the manipulation of the material, including separation, analyte preconcentration and electrode modification. Differential pulse voltammetry (DVP) was the selected electrochemical technique for BPA detection, presenting high sensitivity (LOD = 29 nM, LOQ = 97 nM) and precision under optimum conditions. To study selectivity, the response of the sensor towards four potential interferents was evaluated (phenol, methanol, sodium nitrate and ascorbic acid), and no interference was observed. Finally, a real wastewater sample was successfully analyzed, demonstrating to be adequate for water-control applications. eng http://creativecommons.org/licenses/by-nc-nd/4.0/ embargoed access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Sensores electroquímicos Materiales compuestos Polifenoles Selective electrochemical sensor for bisphenol A detection in wastewater using molecularly imprinted polymers on sustainable magnetic graphene oxide. journal article