| AADC | Aromatic l-amino acid decarboxylase |
| AAV | Adeno-associated virus |
| ADA-SCID | Adenosine deaminase-deficient severe combined immunodeficiency |
| AFM | Atomic force microscopy |
| ARSA | Deficiency of lysosomal arylsulfatase A |
| ASOs | Antisense oligonucleotides |
| cAMP | Cyclic adenosine monophosphate |
| CD | Circular dichroism |
| cDNA | Complementary deoxyribonucleic acid |
| CF | Cystic fibrosis |
| CFTR | Cystic fibrosis transmembrane conductance regulator |
| CLSM | Confocal laser scanning microscopy |
| CMV | Cytomegalovirus |
| CNS | Central nervous system |
| CPP | Cell penetrating peptide |
| CRISPR | Clustered regularly interspaced short palindromic repeats |
| CS | Chitosan |
| DA | Degree of acetylation |
| DHM | Digital holographic microscopy |
| DLS | Dynamic light scattering |
| DP | Degree of polymerization |
| DS | Dextran sulphate |
| dsRNA | Double-stranded ribonucleic acid |
| eGFP | Green fluorescent protein |
| ENaC | Epithelial sodium channel |
| GAN | Giant axonal neuropathy |
| HA | Hyaluronic acid |
| HDP | High degree of polymerization |
| HSC | Hematopoietic stem cells |
| ITC | Isothermal titration calorimetry |
| LDV | Laser Doppler velocimetry |
| LNA | Locked nucleic acids |
| LPLD | Familial lipoprotein lipase deficiency |
| LSD | Lysosomal storage diseases |
| miRNA | Micro ribonucleic acid |
| MLD | Methachromatic leukodistrophy |
| mRNA | Messenger ribonucleic acid |
| Mw | Molar mass |
| N/P | Amino to phosphate charge ratio |
| NPs | Nanoparticles |
| oc pDNA | Open chain plasmid deoxyribonucleic acid |
| PA | Pattern of acetylation |
| PAMPs | Pathogen-associated molecular patterns |
| PCD | Primary ciliary dyskinesia |
| PDE | Phosphodiesterase |
| pDNA | Plasmid deoxyribonucleic acid |
| PEI | Polyethylene imine |
| PGA | Poly-d-glutamic acid |
| PLL | Poly-Lysine |
| rAAV | Recombinant adeno-associated virus |
| rAD | Recombinant adenovirus |
| RGMC | Reduced generation of multiple motile cilia |
| RISC | RNA interference silencing complex |
| rLV | Recombinant lentivirus |
| RT-PCR | Real-time quantitative reverse transcription polymerase chain reaction |
| SAXS | Small angle X-ray scattering |
| SCID | Severe combined immunodeficiency |
| SeV | Murine parainfluenza virus type 1 |
| siRNA | Small interfering ribonucleic acid |
| sc pDNA | Supercoiled plasmid deoxyribonucleic acid |
| SPR | Surface plasmon resonance |
| ssRNA | Single-stranded ribonucleic acid |
| TALEN | Transcription activator-like effector nucleases |
| TEM | Transmission electron microscopy |
| TLR | Toll-like receptor |
| TPP | Pentasodium tripolyphosphate |
| WAS | Wiskott-Aldrich syndrome |
| ZFN | Zinc finger nucleases |