Figure 5From: A Facile Nanoparticle Immunoassay for Cancer Biomarker DiscoveryPAP assay of 10-fold diluted human serum samples. Normal and BPH samples were randomly selected from the total 25 samples. Cancer samples used for this assay are those with a stage of T2c or above. The particle size change is the difference between the size measured at 5 min after antibody addition and the size measured just before antibody addition.Back to article page