341260.fig.004a
(a)
341260.fig.004b
(b)
341260.fig.004c
(c)
341260.fig.004d
(d)
341260.fig.004e
(e)
Figure 4: SPM image of capture surface patterning: (a) height and (b) phase (8 × 8 μm), zoomed in analysis; (c) height and (b) phase of capture stripe (avidin immobilized on DSP) containing bound G4 biotinylated PAMAM dendrimers. Cross-section analysis of bound G4 biotinylated PAMAM dendrimers in (d) is shown in (e). The capture platform was exposed to 200 μL of 5.0 μmol/L concentration of G4 biotinylated PAMAM dendrimer solution.