| AUC | Area under the curve |
| CIA | Collagen-induced arthritis |
| CII | Type II bovine collagen |
| D2O | Deuterium oxide |
| DMSO-d6 | Deuterated dimethyl sulfoxide |
| DOPE | 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine |
| DSPE–mPEG | 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000] |
| EE | Encapsulation efficiency |
| EPC | Egg phosphatidylcholine |
| IP | Intraperitoneally |
| MTX | Methotrexate |
| NMR | Nuclear magnetic resonance |
| PBS | Phosphate-buffered saline |
| PDI | Polydispersity index |
| SD | Standard deviation |