mRNA	Messenger ribonucleic acid
pDNA	Plasmid deoxyribonucleic acid
siRNA	Small interfering ribonucleic acid
DMG-PEG	1,2-Dimyristoyl-rac-glycero-3-methoxypolyethylene glycol-2k
DSPE-PEG-N3	1,2-Distearoyl-sn-glycero-3-phosphoethanolamine-N [azido (polyethylene glycol)-2k]
(SPAAC)	Strain-promoted azide-alkyne cycloaddition
DBCO	Dibenzocyclooctyne
LNP	Lipid nanoparticle
FDA	Food and Drug Administration
COVID-19	Coronavirus disease 2019
pHPMA	Poly(N-(2-hydroxypropyl)methacrylamide)
pOx	Poly(2-oxazoline)
apoE	Apolipoprotein E
LAF	Lipo-amino fatty acid
LAF-XP	Lipo-amino fatty acid–xenopeptide
SPPS	Solid-phase-assisted peptide synthesis
Stp	Succinoyl tetraethylene pentamine
EGFR	Epidermal growth factor receptor
HEPES	4-(2-Hydroxyethyl)-1-piperazineethansulfonic acid
HBG	HEPES-buffered glucose
PBS	Phosphate-buffered saline
DLS	Dynamic light scattering
N2A	Neuro-2a cell line
HEPG2	Human hepatocellular carcinoma cell line
HUH7	Human hepatoma cell line
PDI	Polydispersity index
MTT	3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
HPLC	High-performance liquid chromatography
MALDI-TOF-MS	Matrix-assisted laser desorption/ionization–time of flight–mass spectrometry
EtBr	Ethidium bromide
FGG	Fibrinogen
Csf1r	Colony stimulating factor 1 receptor
PEI	Polyethylenimine
NTA	Nanoparticle tracking analysis