| 2D | Two dimensional |
| 3D | Three dimensional |
| ATP | Adenosine Triphosphate |
| BBB | Blood–brain barrier |
| BL-PDT | Bioluminescence-Mediated Photodynamic Therapy |
| BODIPY | 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene |
| CALR | Calreticulin |
| CCR5 | Chemokine Receptor Type 5 |
| CCR7 | Chemokine Receptor Type 7 |
| CD | Cluster of Differentiation |
| CPPs | Cell Penetrating Peptides |
| CTL | Cytotoxic T Lymphocytes |
| DAMPs | Damage-Associated Molecular Patterns |
| DCs | Dendritic Cells |
| DLI | Drug to Light Interval |
| ECM | Extracellular Matrix |
| EGFR | Epidermal Growth Factor Receptor |
| EPR | Enhanced Permeability and Retention |
| F4BMet | 5,10,15,20-tetrakis-[2′,3′,5′,6′-tetrafluoro-4′-methanesulfamoyl)phenyl] bacteriochlorin |
| FBS | Fetal Bovine Serum |
| FR | Folate receptor |
| GLUTs | Glucose Transporter |
| HCC | Hepatocellular Carcinoma |
| HER2 | Human Epidermal Growth Factor Receptor 2 |
| HMGB1 | High-Mobility Group Box 1 |
| HSA | Human Serum Albumin |
| HSP70 | Heat Shock Protein 70 |
| ICD | Immunogenic Cell Death |
| IDO | Indoleamine 2,3-Dioxygenase |
| NK | Natural Killer Cells |
| NIR | Near-Infrared |
| NIR-II | Second Near-Infrared Window (1000–1700 nm) |
| NIR-IIa | Sub-window of NIR-II (1300–1400 nm) |
| OoC | Organ on chip |
| PA | Pyropheophorbide-a |
| PDT | Photodynamic Therapy |
| PIT | Photoimmunotherapy |
| PpIX | Protoporphyrin IX |
| PS/PSs | Photosensitizer/Photosensitizers |
| RNI | Reactive Nitrogen Intermediates |
| RONS | Reactive Oxygen and Nitrogen Species |
| ROS | Reactive Oxygen Species |
| SBCS | Symmetry-Breaking Charge Separation |
| SELEX | Systematic Evolution of Ligands by Exponential Enrichment |
| TME | Tumour Microenvironment |