BP	basal plate
CF	carbon fiber
EB	embryoid body
FL	fiber-less
iPSC	induced pluripotent stem cell
Lmx1a	LIM homeobox transcription factor
mDA	midbrain dopaminergic neuron
mFP	midbrain floor plate (mFP)
Msx1	homologue 1 muscle segment homeobox
Nurr1	Nr4a2, nuclear receptor 4a2
PD	Parkinson’s disease
piPS	protein-induced pluripotent stem cells
Pitx3	pituitary homeobox 3 or paired-like homeodomain transcription factor 3
PLGA	copolymer poly-(lactic-co-glycolic acid)
SEM	scanning electron microscopy
TH	tyrosine hydroxylase
Tuj1	neuron-specific class III β-tubulin