Fig. 1From: Oleic acid conjugated polymeric photosensitizer for metastatic cancer targeting in photodynamic therapyCharacterization of Oleic Acid-Pullulan-Ce6. (a) Synthetic route of OPuC. OA is firstly conjugated with Pullulan and then Ce6 is conjugated with the remaining hydroxyl group. (b) 1H-NMR analysis of OPuC and PuC in DMSO-d6, and Oleic acid in CDClBack to article page