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Conductive Core (conductive + core)

Distribution by Scientific Domains
Polymers and Materials Science100%

Selected Abstracts

Conductive Core,Sheath Nanofibers and Their Potential Application in Neural Tissue Engineering

ADVANCED FUNCTIONAL MATERIALS, Issue 14 2009
Jingwei Xie
Abstract Conductive core,sheath nanofibers are prepared by a combination of electrospinning and aqueous polymerization. Specifically, nanofibers electrospun from poly(, -caprolactone) (PCL) and poly(L -lactide) (PLA) are employed as templates to generate uniform sheaths of polypyrrole (PPy) by in-situ polymerization. These conductive core,sheath nanofibers offer a unique system to study the synergistic effect of different cues on neurite outgrowth in vitro. It is found that explanted dorsal root ganglia (DRG) adhere well to the conductive core,sheath nanofibers and generate neurites across the surface when there is a nerve growth factor in the medium. Furthermore, the neurites can be oriented along one direction and enhanced by 82% in terms of maximum length when uniaxially aligned conductive core,sheath nanofibers are compared with their random counterparts. Electrical stimulation, when applied through the mats of conductive core,sheath nanofibers, is found to further increase the maximum length of neurites for random and aligned samples by 83% and 47%, respectively, relative to the controls without electrical stimulation. Together these results suggest the potential use of the conductive core,sheath nanofibers as scaffolds in applications such as neural tissue engineering. [source]

Construction of Redispersible Polypyrrole Core,Shell Nanoparticles for Application in Polymer Electronics

ADVANCED MATERIALS, Issue 10-11 2009
Jianjun Wang
Redispersible conductive core,shell nanoparticles with a polystyrene core and a polystyrene sulfonate shell loaded with polypyrrole (PPy) are constructed. The smooth conducting thin films assembled from the PPy core,shell nanoparticles show high transmittance in the visible range and adequate adhesion to the substrates. Performance of light-emitting devices with the conducting thin film as the hole injection layer is tested and compared with the one based on PEDOT/PSS. [source]