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Summary of the abbreviations, characteristics and properties of the PEG-diester-dithiol and non-degradable PEG-dithiol cross-linkers. All of the degradable cross-linkers were synthesized in-house.
| Cross-linker name | Molecular weight (kDa) | Number of methylene groups between thiol and ester moieties | Degradablility |
|---|---|---|---|
| PEG-SH 3.4 | 3.4 | 0 | no |
| PEG-SH 1 3.4 | 3.4 | 1 | yes |
| PEG-SH 2 3.4 | 3.4 | 2 | yes |
| PEG-SH 2 6 | 6 | 2 | yes |
| PEG-SH 2 8 | 8 | 2 | yes |
