(A) Time-course pictures of neurons on culture after 4 DIV, 1 DPP,
2 DPP, 6 DPP, 10 DPP, 14 DPP, and 21 DPP. Scale bar = 50 μm.
(B) Neuronal conformity to PEG-DETA bidirectional polarity pattern(s).
Attachment and regeneration of neurons on the bidirectional polarity
patterns was quantified by counting the number of neurons (1) attached
to any part of the two-cell circuit pattern and (2) specifically to
the SASs. The percentage of neurons attached to the DETA patterns
versus the PEG background was quantified (n >
15,
where n is the number of patterned coverslips evaluated).