ATP	Adenosine Triphosphate
AMT	Adsorptive-mediated Transcytosis
AD	Alzheimer’s Disease
HIR-MAb	Anti-human Insulin Receptor Monoclonal Antibody
TfR-MAb	Anti-transferrin Receptor Monoclonal Antibody
AUC0T	Area under the Plasma Drug Concentration-time Curve
ASL-MRI	Arterial Spin labelling Coupled Magnetic Resonance Imaging
ABC	ATP-binding Cassette Transporters
BBB	Blood Brain Barrier
BCSFB	Blood Cerebrospinal Fluid Barrier
Cbr	Brain Concentration
BCRP	Breast Cancer Resistance Protein
CMT	Carrier-mediated Transcytosis
CNS	Central Nervous System
CSF	Cerebrospinal Fluid
Ð	Dispersity Index
DCE-MRI	Dynamic Contrast Enhanced Magnetic Resonance Imaging
EC	Endothelial Cell
EPO	Erythropoietin
GLUT	Glucose Transporter
GFP	Green Fluorescent Protein
IR	Insulin Receptor
ISF	Interstitial Fluid
l-DOPA	l-3,4-dihydroxyphenylalanine
LAT	Large Neutral Amino Acid Transporter
LBL	Lipid Bilayer
LRP	Lipoprotein Receptor-related Protein
LC-MS/MS	Liquid Chromatography Coupled Mass Spectrometry
LDLR	Low-density Lipoprotein Receptor
MB-FUS	Microbubble-assisted Focused Ultrasound
MCT	Monocarboxylate Transporter
MRP	Multidrug Resistance-associated Protein
NPBA	Nanoscopic Polymeric Brush Architectures
NMDA	N-methyl-D-aspartate
Mn	Number Average Molecular Weight
OTAP	Organic-anion-transporting Polypeptide
PD	Parkinson Disease
P-gp	P-glycoprotein
PET	Positron-emission Tomography
QTAP	Quantitative-targeted Absolute Proteomics
RV	Rabies Virus
RVG	Rabies Virus Glycoprotein
RMT	Receptor-mediated Transcytosis
ROMP	Ring Opening Metathesis Polymerization
siRNA	Small Interfering Ribonucleic Acid
SLC	Solute Carrier Transporter Proteins
TJ	Tight Junction
TfR	Transferrin Receptor
FDA	U S Food and Drug Administration
VFR	Virulence Factor Receptor