title: Axially aligned electrically conducting biodegradable nanofibers for neural regeneration.
abstract: In this study, electrically conducting axially aligned nanofibers have developed to provide both electrical and structural cues. Poly(lactide-co-glycolide) (PLGA) with poly(3-hexylthiophene) (PHT) was electrospun into 2D random (196 ± 98 nm) and 3D axially aligned nanofibers (200 ± 80 nm). Electrospun random and aligned PLGA-PHT fibers were characterized for surface morphology, mechanical property, porosity, degradability, and electrical conductivity. The pore size of random PLGA-PHT nanofibers (6.0 ± 3.3 μm) were significantly higher than the aligned (1.9 ± 0.4 μm) (P < 0.05) and the Young's modulus of aligned scaffold was significantly lower than the random. Aligned nanofibers showed significantly lesser degradation rate and higher electrical conductivity (0.1 × 10(-5) S/cm) than random nanofibers (P < 0.05). Results of in vitro cell studies indicate that aligned PLGA-PHT nanofibers have a significant influence on the adhesion and proliferation of Schwann cells and could be potentially used as scaffold for neural regeneration.
authors.affiliation: Center for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur, 613 401, Tamil Nadu, India.
authors.forename: Anuradha
authors.initials: A
authors.lastname: Subramanian
authors.forename: Uma Maheswari
authors.initials: UM
authors.lastname: Krishnan
authors.forename: Swaminathan
authors.initials: S
authors.lastname: Sethuraman
mesh_terms: D000818:Animals; D001672:Biocompatible Materials; D004553:Electric Conductivity; D018613:Microscopy, Confocal; D008855:Microscopy, Electron, Scanning; D057139:Nanofibers; D009416:Nerve Regeneration; D051381:Rats
chemical_list: D001672:Biocompatible Materials