Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.biomaterials.2004.06.051
Title: Electrospinning of nano/micro scale poly(l-lactic acid) aligned fibers and their potential in neural tissue engineering
Authors: Yang, F.
Murugan, R. 
Wang, S.
Ramakrishna, S. 
Keywords: Alignment
Contact guidance
Electrospinning
Nanofiber
Neural stem cell
Neural tissue engineering
Poly(l-lactic acid)
Issue Date: May-2005
Source: Yang, F.,Murugan, R.,Wang, S.,Ramakrishna, S. (2005-05). Electrospinning of nano/micro scale poly(l-lactic acid) aligned fibers and their potential in neural tissue engineering. Biomaterials 26 (15) : 2603-2610. ScholarBank@NUS Repository. https://doi.org/10.1016/j.biomaterials.2004.06.051
Abstract: Efficacy of aligned poly(l-lactic acid) (PLLA) nano/micro fibrous scaffolds for neural tissue engineering is described and their performance with random PLLA scaffolds is compared as well in this study. Perfectly aligned PLLA fibrous scaffolds were fabricated by an electrospinning technique under optimum condition and the diameter of the electrospun fibers can easily be tailored by adjusting the concentration of polymer solution. As the structure of PLLA scaffold was intended for neural tissue engineering, its suitability was evaluated in vitro using neural stem cells (NSCs) as a model cell line. Cell morphology, differentiation and neurite outgrowth were studied by various microscopic techniques. The results show that the direction of NSC elongation and its neurite outgrowth is parallel to the direction of PLLA fibers for aligned scaffolds. No significant changes were observed on the cell orientation with respect to the fiber diameters. However, the rate of NSC differentiation was higher for PLLA nanofibers than that of micro fibers and it was independent of the fiber alignment. Based on the experimental results, the aligned nanofibrous PLLA scaffold could be used as a potential cell carrier in neural tissue engineering. © 2004 Elsevier Ltd. All rights reserved.
Source Title: Biomaterials
URI: http://scholarbank.nus.edu.sg/handle/10635/60144
ISSN: 01429612
DOI: 10.1016/j.biomaterials.2004.06.051
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