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To increase pancreatic tumor-targeted phototoxicity of photosensitizers, a hyperbranched cationic amylopectin derivative conjugated with 3-(dimethylamino)-1-propylamine (DMAPA-Amp) was invevstigated as a multi-guest molecular host for the targeted delivery of a photosensitizer to human pancreatic cancer (Panc-1) cells. We selected protoporphyrin IX (PpIX) and folic acid as a photosensitizer and a...
To improve the small intestinal absorption efficacy of Astragalus polysaccharides (APS) through oral administration, amphiphilic chitosan derivatives conjugated with deoxycholic acid residues in the absence and presence of vitamin B12 residues (DA-Chit and VB12-DA-Chit, respectively) were synthesized and characterized by FTIR and NMR spectroscopy. APS and the amphiphilic chitosan derivatives formed...
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