RT Journal Article T1 Electrochemical lossy mode resonance for detection of manganese ions A1 Domínguez Rodríguez, Ismel A1 Corres Sanz, Jesús María A1 Villar Fernández, Ignacio del A1 Mozo Llamazares, Juan Daniel A1 Simerova, Radka A1 Sezemsky, Petr A1 Stranak, Vitezslav A1 Smietana, Mateusz A1 Matías Maestro, Ignacio Raúl AB In this work we propose electrochemical lossy mode resonance (eLMR) as a powerful method for the detection of manganese (Mn) ions. The sensor is based on a simple planar waveguide (sodasingle bondlime glass coverslip) coated with a thin layer of indium tin oxide (ITO) to obtain an optical resonance effect. Simultaneously, the ITO layer served as the working electrode in the cathodic stripping voltammetry (CSV) of Mn. The eLMR sensor is capable of simultaneously performing electrochemical (EC) and optical measurements, specifically lossy mode resonance (LMR), to monitor the growth of the adsorbed Mn layer on the ITO electrode and the electrochemically modulated diffusion layer. For Mn2+ ions, a limit of detection (LoD) of 1.26 ppb has been demonstrated using the EC method, whereas the optical method exhibited a LoD of 67.76 ppb. The results obtained indicate significant potential for application in molecular electrochemistry and studies focused on electrified interfaces. PB Elsevier SN 0925-4005 YR 2023 FD 2023-08 LK https://hdl.handle.net/10272/23928 UL https://hdl.handle.net/10272/23928 LA eng NO Dominguez, I., Corres, J. M., Del Villar, I., Mozo, J. D., Simerova, R., Sezemsky, P., Stranak, V., Śmietana, M., & Matias, I. R. (2023). Electrochemical lossy mode resonance for detection of manganese ions. In Sensors and Actuators B: Chemical (Vol. 394, p. 134446). Elsevier BV. https://doi.org/10.1016/j.snb.2023.134446 NO This work was supported in part by the Agencia Estatal de Investigación (AEI) from the Spanish Ministry of Economy and Competitiveness (PID2019-106070RB-I00 and PID2022-137437OB-I00 research funds), by the Government of Navarre through its projects with references: and PC058-059 EleSpray and 0011-1365-2022-000241, and by the pre-doctoral research grant of the Public University of Navarra. The authors also acknowledge financial support received from the National Centre for Research and Development, Poland, grant No. TECHMATSTRATEG- III/0042/2019, as well as the Czech Science Foundation Agency through the project 21-05030K and the National Science Centre (NCN), Poland, as part of the 2020/02/Y/ST8/00030 project. Open access funding provided by Universidad Pública de Navarra. DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026