BDNF	brain-derived neurotrophic facto
BSA	bovine serum albumin
DIC	differential interference contrast microscopy
DS	dextran sulfate sodium salt
FITC	fluorescein isothiocyanate
FM1-43 dye	N-(3-Triethylammoniumpropyl)-4-(4-(Dibutylamino) Styryl) Pyridinium Dibromide
GDNF	glial-cell-derived neurotrophic factor
iPSC	induced pluripotent stem cells
KCl	high-potassium medium
LbL	layer-by-layer technique
NGF	nerve growth factor
Parg	poly-L-arginine
PLGA	poly-lactic-co-glycolic-acid
ROI	region of interest
SEM	scanning electron microscopy
s.e.m.	standard error of the mean
TRITC	tetramethylrhodamine