DDS(s)	Drug-delivery system(s)
BBB	Blood–brain barrier
CNS	Central nervous system
CMT, RMT and AMT	Carrier-mediated, receptor-mediated and absorptive-mediated transcytosis
P-gp	P-glycoprotein
WHO	World Health Organization
GBM	Glioblastoma multiforme
Tf, oTf and Lf	serum-Transferrin, ovo-Transferrin and Lactoferrin
TfR	Transferrin receptor
EPR	Enhanced permeability and retention
NP(s)	Nanoparticle(s)
AuNP(s)	Gold nanoparticle(s)
MNP(s)	Magnetic nanoparticle(s)
MRI	Magnetic resonance imaging
PM(s)	Polymeric micelle(s)
SNP(s)	Polymeric solid nanoparticle(s)
Apo-A1 and Apo-E	Apolipoprotein A1 and Apolipoprotein E
LbL assembly	Layer-by-layer assembly
LA and GA	Lactic acid and Glycolic acid
Abbreviated Chemicals:
FTIC	Fluorescein isothiocyanate
IO	Iron oxide
PS-PAA	Poly(styrene)-poly(acrylic acid)
PEG-PLA	Poly(ethylene)glycol-poly(lactic acid)
PEG-DSPE	Distearyl-sn-glycero-3-phosphoethanolamine-N-methoxy poly
	(ethylene glycol)
PEG-PLA	Poly(ethylene glycol)-poly(lactic acid)
PEG-PLGA	Poly(ethylene glycol)-poly(lactic-co-glycolic acid)
DPX	Dapoxetine
PAMAM	Polyamidoamine
IL-13R$\alpha$2	Interleukin-13-receptor-$\alpha$2
EDC	N-Ethyl-N${}^{\prime }$-(3-dimethylaminopropyl)carbodiimide hydrochloride
NHS	N-hydroxysuccinimide
PLGA	Poly(lactic-co-glycolic acid)
PEG	Poly(ethylene(glycol
BSA	Bovine serum albumin
FR$\alpha$	Folate receptor alpha
Cur	Curcumin
g7	Gly-l-Phe-D-Thr-Gly-l-Phe-l-Leu-LSer(O-$\beta$-D-Glucose)-CONH${}_2$
TMC	Trimethylated chitosan
PEP	PLGA-PEG-PLGA