点击放大环状聚乙二醇-聚乙二醇臂-巯基(n=4)28-crown-9-PEG4-SH; Thiol-terminated PEG arm on a cyclic poly(ethylene glycol) scaffold (arm n=4)
点击放大双臂-聚乙二醇-巯基(n=4)2-Arm-PEG-SH (n=4, per arm); 2-Arm thiol-functionalized discrete poly(ethylene glycol) (PEG arm n=4)
点击放大三臂-聚乙二醇-巯基(n=4)3-Arm-PEG-SH (n=4, per arm); 3-Arm thiol-functionalized discrete poly(ethylene glycol) (PEG arm n=4)
点击放大六臂-聚乙二醇-巯基(n=4)6-Arm-PEG-SH (n=4, per arm); 6-Arm thiol-functionalized discrete poly(ethylene glycol) (PEG arm n=4)
点击放大八臂-聚乙二醇-巯基(n=4)8-Arm-PEG-SH (n=4, per arm); 8-Arm thiol-functionalized discrete poly(ethylene glycol) (PEG arm n=4)