COVID-19 diagnosis by SARS-CoV-2 Spike protein detection in saliva using an ultrasensitive magneto-assay based on disposable electrochemical sensor - Nascimento, Evair D.; Fonseca, Wilson T.; Oliveira, Tassia R. de; Correia, Camila R. S. T. B. de; Faça, Vitor Marcel; Morais, Beatriz Pereira de; Silvestrini, Virgínia Campos; Pott-Junior, Henrique; Teixeira, Felipe Roberti; Faria, Ronaldo C. (Sensors and Actuators: B. Chemical, 2022)