Abstract

Nerve growth factor releasing composite nanoparticles (NGF-cNPs) were developed to direct the extension of neurite outgrowth from dorsal root ganglia (DRG). Iron oxide magnetic nanoparticles were incorporated into poly-l-lactic acid (PLLA) nanoparticles in order to position the NGF-cNPs in a culture dish. Neurites growing from DRG extended toward the NGF released from the NGF-cNPs. DRG were then cultured on aligned PLLA microfibers in the presence of NGF-cNPs, and these biomaterials combined to align DRG neurite extension along one axis and preferentially toward the NGF-cNPs. This combinatorial biomaterial approach shows promise as a strategy to direct the extension of regenerating neurites.

Department(s)

Chemical and Biochemical Engineering

Comments

National Stroke Foundation, Grant 1150125

Keywords and Phrases

electrospun fiber; magnetic nanoparticle; nerve growth factor; neurite extension; Poly- l -lactic acid

International Standard Serial Number (ISSN)

1948-7193

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 American Chemical Society, All rights reserved.

Publication Date

31 Aug 2015

PubMed ID

26322376

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