Electrochemical immunosensor for ethinylestradiol using diazonium salt grafting onto silver nanoparticles-silica–graphene oxide hybrids - Cincotto, Fernando Henrique; Martínez-Garcia, Gonzalo; Yáñez-Sedeño, Paloma; Canevari, Thiago da Cruz; Machado, Sergio Antonio Spinola; Pingarrón, José M (Talanta, 2016)