Figure 1
From: Prototype of biliary drug-eluting stent with photodynamic and chemotherapy using electrospinning
Schematic illustration of the PDT-chemo stent as a biliary stent for cholangiocarcinoma treatment. The covered membrane is composed of three layers with PU, PCL/PEG = 9:1 blends and PCL/PEG = 1:4 blends. PU was employed as the material of the backing layer, and PCL/PEG blends were used in drug-storing layers with GEM and HP loaded.