RT Journal Article T1 Towards Control and Oversight of SARS-CoV-2 Diagnosis andMonitoring through Multiplexed Quantitative ElectroanalyticalImmune Response Biosensors A1 Torrente Rodríguez, Rebeca Magnolia A1 Montero Calle, Ana A1 San Bartolomé, Clara A1 Cano, Olga A1 Vazquez, Monica A1 Iglesias Caballero, María A1 Corral Lugo, Andrés A1 McConnell, Michael J. A1 Pascal, Mariona A1 Mas, Vicente A1 Pingarrón Carrazón, José Manuel A1 Barderas Manchado, Rodrigo A1 Campuzano Ruiz, Susana AB The development of versatile and sensitive biotools to quantify specific SARS-CoV-2 immunoglobulins in SARS-CoV-2 infected and non-infected individuals, built-on the surface of magnetic microbeads functionalized with nucleocapsid (N) and inhouse expressed recombinant spike (S) proteins is reported.Amperometric interrogation of captured N- and S-specific circulating total or individual immunoglobulin (Ig) isotypes (IgG, IgM, and IgA), subsequently labelled with HRP-conjugated secondary antibodies, was performed at disposable single or multiplexed (8) screen-printed electrodes using the HQ/HRP/H2O2 system. The obtained results using N and in-house expressed S ectodomains of five SARS-CoV-2 variants of concern (including the latest Delta and Omicron) allow identification of vulnerable populations from those with natural or acquired immunity, monitoring of infection, evaluation of vaccine efficiency and even identification of the variant responsible for the infection. PB Wiley SN 1433-7851 YR 2022 FD 2022-05-04 LK https://hdl.handle.net/20.500.14352/71437 UL https://hdl.handle.net/20.500.14352/71437 LA eng NO CRUE-CSIC (Acuerdos Transformativos 2022) NO Ministerio de Ciencia e Innovación (MICINN) NO Comunidad de Madrid NO Instituto de Salud Carlos III (ISCIII) DS Docta Complutense RD 6 abr 2025