| PEG | polyethylene glycol |
| NHS-POx | N-Hydroxysuccinimide-poly(2-oxazoline) |
| NHS-ester | N-Hydroxysuccinimide-ester |
| NU-POx | Nucleophilicly activated poly(2-oxazoline) |
| PBS | phosphate-buffered saline |
| POx-OH-COOH | poly(2-oxazoline)-acid |
| NMR | nuclear magnetic resonance |
| SEM | scanning electron microscopy |
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