| 5-ALA | 5-aminolevulinic acid hydrochloride |
| APDT | antimicrobial photodynamic therapy |
| DAPI | diamidino-2-phenylindole |
| DMEM/F-12 | Dulbecco’s Modified Eagle Medium/Nutrient Mixture F-12 |
| EDTA | ethylenediaminetetraacetic acid |
| FISH | fluorescence in situ hybridization |
| FBS | fetal bovine serum |
| HNSCC | head and neck squamous cell carcinoma |
| HPPH | 2-(1-Hexyloxyethyl)-2-devinyl pyropheophorbide |
| HPV | Human papilloma virus |
| LLL | low level laser |
| MB | methylene blue |
| mTHPC | meta-tetrahydroxyphenylchlorin |
| MTT | 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide |
| PBS | Phosphate Buffered Saline |
| PDT | Photodynamic therapy |
| PPIX | protoporphyrin IX |
| SCC | squamous cell carcinoma |
| SCID | severe combined immunodeficiency |
| SRB | sulforhodamine B assay |