2D	Two-dimensional models
3D	Three-dimensional models
AuNPs	Gold nanoparticles
CRC	Colorectal cancer
ECM	Extracellular matrix
e6	Chlorin e6
EGFR	Epidermal growth factor receptors
FOBT	Faecal occult blood test
HpD	Hematoporphyrin derivative
mAb	Monoclonal antibodies
MCTS	Multicellular tumour spheroids
NIR	Near infrared
NPs	Nanoparticles
PDT	Photodynamic therapy
PSs	Photosensitizers
PTT	Photothermal therapy
ROS	Reactive oxygen species
TNM	Tumour, nodes, metastasis