Fabrication of conductive NGF-conjugated polypyrrole-poly(l-lactic acid) fibers and their effect on neurite outgrowth

- Conductive NGF-conjugated PPy-PLLA composite fibers were prepared.
- Longer neurites could grow from PC12 cells on NGF-conjugated PPy-PLLA fibers under electro-stimulation of 100 mV/cm.
- A mechanism for the interaction between neurite extension and NGF-conjugated PPy-PLLA fibers under electro-stimulation was proposed.