PEI	Polyethylenimine
Man-PEI	Mannosylated polyethylenimine
PEG	Polyethylene glycol
PCL	Polycaprolactone
GI	Gastrointestinal
CRC	Colorectal cancer
NP	Nanoparticles
MPITC	α-D-mannopyranosylphenyl isothiocyanate
FTIR	Fourier-transform infrared spectroscopy
N/P	Nitrogen/Phosphate
PAA	Polyacrylic acid
SEM	Scanning Electron Microscopy
SGF	Simulated Gastric Fluid
SIF	Simulated Intestinal Fluid
GFP	Green Fluorescent Protein
PDI	Polydispersity index
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
qPCR	Quantitative polymerase chain reaction
NMR	Nuclear Magnetic Resonance
DLS	Dynamic Light Scattering
DCM	Dichloromethane
mRNA	Messenger RNA
miRNA	Micro RNA
siRNA	Small interfering RNA