Fig. 6
Ex vivo fluorescence images of excised organic tissues from mice with pulmonary P727 isolate infection after treatment with Cy5-NHS ester or Cy5-labeled nanoformulations (each mouse received 20 μg Cy5) at interval time point (a). The control was treated with saline. CLSM images of sputum dropwise with Cy5/Oxi-αCD NPs (PEGylated NPs) and Cy5/PLGA NPs (without PEG modification) with 0.05 μg/mL Cy5 at 0 and 3 h (b). Scale bar represents 20 μm