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. 2016 Nov 8;9:117. doi: 10.3389/fnmol.2016.00117

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Copyright © 2016 Song, Sun, Liu, Chen, Zhang, Wang, Mo, Che, Ouyang, Yuan and Fan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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In vitro study of pheochromocytoma (PC12) cells. (A) Median neurite length. (B) Cell viability by cell counting Kit-8 (CCK-8). All data from the tissue culture plates (TCP; control group), conductive PPY/PLCL film without electric stimulation (ES; PPY/PLCL group) and with ES (PPY/PLCL + ES group) on Day 1, 3, 5 and 7 (n = 6, ^#p < 0.05, ^##p < 0.01 the PPY/PLCL + ES group vs. TCP control group; *p < 0.05, **p < 0.01 the PPY/PLCL + ES group vs. PPY/PLCL group). (C) Fluorescence images of PC12 cells cultured on PPY/PLCL film with ES (E1: Day1, E2: day3, E3: Day 5, E4: Day 7; scale bar: 40 μm).