Figure 3: Calibration curves for (a) immunoimaging SPM assay and (b) HPLC analysis of G4 biotinylated PAMAM dendrimers. The SPM analysis represents the average number of dendrimers bound within a μm area for different concentrations of dendrimers. Data acquired from 10 capture substrates, with 10 images per sample ( , , ). The HPLC analysis represents an average of 10 samples for each concentration evaluated ( , , ).