点击放大双臂-聚乙二醇-羟基(n=12)2-Arm-PEG-OH (n=12, per arm); 2-Arm hydroxyl-functionalized discrete poly(ethylene glycol) (PEG arm n=12)
点击放大四臂-聚乙二醇-羟基(n=12)4-Arm-PEG-OH (n=12, per arm); 4-Arm hydroxyl-functionalized discrete poly(ethylene glycol) (PEG arm n=12)
点击放大六臂-聚乙二醇-羟基(n=12)6-Arm-PEG-OH (n=12, per arm); 6-Arm hydroxyl-functionalized discrete poly(ethylene glycol) (PEG arm n=12)
点击放大八臂-聚乙二醇-羟基(n=12)8-Arm-PEG-OH (n=12, per arm); 8-Arm hydroxyl-functionalized discrete poly(ethylene glycol) (PEG arm n=12)