Fig. 1From: Amine-Aldehyde Chemical Conjugation on a Potassium Hydroxide-Treated Polystyrene ELISA Surface for Nanosensing an HIV-p24 AntigenSchematic representation of chemically modified ELISA (a). The ELISA surface was modified chemically using APTES and GLU after potassium hydroxide treatment. The antigen was immobilized on the GLU-modified surface. b The immobilized antigen was detected by its partner antibodyBack to article page