ABC	ATP-binding cassette
CFU	Colony forming unit
DFT	Density functional theory
DMMB	1,9-dimethylmethylene blue
DNA	Deoxyribonucleic acid
EPI	Efflux pump inhibitor
HOMO	Highest occupied molecular orbital
ISC	Intersystem crossing process
LUMO	Lowest unoccupied molecular orbital
LPS	Lipopolysaccharides
MB	Methylene blue
MDR	Multidrug resistance
MEP	Microbial efflux pump
NHE	Normal hydrogen electrode
NSC	Normal standard electrode
PDI	Photodynamic inactivation
PDT	Photodynamic therapy
PS	Photosensitizer
RB	Rose Bengal
ROS	Reactive oxygen species
SAR	Structure–activity relationship
SCE	Saturated calomel electrode
TBO	Toluidine blue O
TDDFT	Time-dependent density functional theory