Fig. 7. (a) Representative digital images of the tumor-bearing mice after photothermal treatment (808 nm, 1.5 W cm⁻², 5 min) without (control) and with PBS (0.01 M, pH 7.40), GNR-PEO (0.5 mg mL⁻¹), GNR-Man (0.5 mg mL⁻¹) and GNR-Man/PRGD (0.5 mg mL⁻¹/0.25 mM) for 3, 6, 9, 12 and 15 days. (b) Representative digital images of the tumors removed from the xenograft mice after PTT for 15 days. (c) H&E staining and immunohistochemical staining with integrin β3 (CD61) or MR antibody (CD206) of tumor slices removed from xenograft mice after PTT for 15 days.