Surface modification of PLLA nano-scaffolds with laminin multilayer by LbL assembly for enhancing neurite outgrowth.

Abstract:

:In this study, PLLA nanofibers are fabricated by electrospinning and their surfaces are modified by laminin/chitosan (LN/CS) polyelectrolyte multilayer. Surface C/N ratio determined by XPS analysis quantitatively indicates of discrete coating layers on the nanofibers. The amount of LN deposited sustainably increases with LbL assembly processing, approximately 60 ng mm(-2) LN per cycle of LN/CS deposition. The LN-modified PLLA scaffolds significantly induce neurite outgrowth of DRG neurons and NSC compared to the pure PLLA nanofibrous scaffolds. Furthermore, higher amounts of LN adsorbed assist in promoting cell proliferation than PLLA as-spun nanofibers. Therefore, a facile and efficient method to modify nano-scaffolds for the construction of a biomimetic scaffold to promote highly efficient neurite outgrowth is presented.

journal_name

Macromol Biosci

authors

He L,Tang S,Prabhakaran MP,Liao S,Tian L,Zhang Y,Xue W,Ramakrishna S

doi

10.1002/mabi.201300177

subject

Has Abstract

pub_date

2013-11-01 00:00:00

pages

1601-9

issue

11

eissn

1616-5187

issn

1616-5195

journal_volume

13

pub_type

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