| ACE2 | angiotensin-converting enzyme 2 |
| NM | nafamostat |
| TMPRSS2 | transmembrane serine protease 2 |
| NP | nanoparticle |
| PLGA-PEG | Poly(lactide-co-glycolide)-poly (ethylene glycol) |
| IPTG | isopropyl-β-D-thiogalactopyranoside |
| EDC | 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride |
| NHS | N-Hydroxysuccinimide |
| PDI | polydispersity index |