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)
点击放大Y型-双臂-甲氧基-聚乙二醇-NHS活性酯（n=8）Y-(mPEG8)2-NHS; Y-shaped bis(methoxy-poly(ethylene glycol)) with a single N-hydroxysuccinimide ester conjugation handle (PEG arm n=8)
点击放大Y型-双臂-甲氧基-聚乙二醇-马来酰亚胺（n=8）Y-(mPEG8)2-Mal; Y-shaped bis(methoxy-poly(ethylene glycol)) with a single Mal conjugation handle (PEG arm n=8)
