100 µL multi-function PtCo/CdS@GO luminophores dispersion (3.33 mg mL− 1), 200 µL rabbit anti-mouse IgG (anti-Ab, 1 mg mL− 1) and 200 µL PBS (0.01 M, pH 7.4) buffer were mixed together and shaken at 4 °C for 12 h. After that, the as-prepared anti-Ab/...