AMT	Adsorptive-mediated transcytosis
BBB	Blood-brain barrier
BBTB	Blood-brain tumor barrier
CNS	Central nervous system
FUS	Focused ultrasound
GNP	Gold nanoparticle
LDL	Low-density lipoprotein
MRI	Magnetic Resonance Imaging
NP	Nanoparticle
PBCA	Poly(butyl cyanoacrylate)
PEG	Polyethylene glycol
PLA	Poly(lactic acid)
QD	Quantum dots
RES	Reticuloendothelial system
RMT	Receptor-mediated transport
SLN	Solid lipid nanoparticle
TAT	Transactivator of transcription
Tf	Transferrin receptor
TfR	Transferring receptor
TJ	Tight junction