Longitudinal sections of the regenerated nerve through (A) Nanopore NGC, (B) Nanopore NGC/NGF, (C) Micropore NGC, and (D) Micropore NGC/NGF (4 weeks after implantation; anti-neurofilament staining [NF-200],×4; white arrow, regenerated nerve; black arrow, NGC). The Nanopore NGCs showed faster axonal growth than the Micropore NGCs, regardless of the presence of NGF. Color images available online at www.liebertpub.com/tec