| PHBT | photoactivatable probe |
| HBT | 2-(2-hydroxyphenyl)benzothiazole |
| ESIPT | excited-state intramolecular proton transfer |
| FPs | fluorescent proteins |
| FRET | fluorescence resonance energy transfer |
| UV | ultraviolet light |
| LC-MS | liquid chromatography-mass spectrometry |
| DMSO | dimethyl sulfoxide |
| PBS | phosphate-buffered saline |
| MTT | 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyltetrazolium bromide |
| SDS | sodium dodecyl sulfate |