Figure 4.
Independent Verification of EGFR Imaging by SERS NPs: five different cell lines with unique EGFR expression levels were analyzed by both FC (A) and Raman imaging (B), similar to Figure 3. The intensity of the two measurement modalities correlates above R 2 = 0.90 suggesting the Raman molecular imaging may be used to quantitatively examine EGFR expression levels.
