Research / 2020 / Article / Fig 4

Research Article

Synergistically Enhanced Mucoadhesive and Penetrable Polypeptide Nanogel for Efficient Drug Delivery to Orthotopic Bladder Cancer

Figure 4

Penetrability. (a) Penetration depth of free HCPT and R9NG/HCPT was observed by CLSM. (b) Bladder penetration quantification of HCPT fluorescence intensity. The arrow represents the direction of HCPT penetration. The scale bar in (a) represents 100 μm. M, mucous membrane; S, serous membrane.