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PC-12 neurite elongation. (A) PCL/PEG-diamine nanofibers; (B) PCL/PEG-diamine nanofibers with 0.5 mg/ml laminin, (C) PCL/PEG-diamine nanofibers with 2 mg/ml laminin; (D) PCL/PEG-diamine nanofibers with 4 mg/ml laminin; and (E) Quantification of PC-12 neurite length. * indicates P < 0.05. # indicates P < 0.01. Scale bar represents 200 μm.
