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Direct Writing Electrospinning of Scaffolds with Multidimensional Fiber Architecture for Hierarchical Tissue Engineering
[Image: see text] Nanofibrous structures have long been used as scaffolds for tissue engineering (TE) applications, due to their favorable characteristics, such as high porosity, flexibility, high cell attachment and enhanced proliferation, and overall resemblance to native extracellular matrix (ECM...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American
Chemical Society
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5682611/ https://www.ncbi.nlm.nih.gov/pubmed/29043781 http://dx.doi.org/10.1021/acsami.7b07151 |
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author | Chen, Honglin Malheiro, Afonso de Botelho Ferreira Braga van Blitterswijk, Clemens Mota, Carlos Wieringa, Paul Andrew Moroni, Lorenzo |
author_facet | Chen, Honglin Malheiro, Afonso de Botelho Ferreira Braga van Blitterswijk, Clemens Mota, Carlos Wieringa, Paul Andrew Moroni, Lorenzo |
author_sort | Chen, Honglin |
collection | PubMed |
description | [Image: see text] Nanofibrous structures have long been used as scaffolds for tissue engineering (TE) applications, due to their favorable characteristics, such as high porosity, flexibility, high cell attachment and enhanced proliferation, and overall resemblance to native extracellular matrix (ECM). Such scaffolds can be easily produced at a low cost via electrospinning (ESP), but generally cannot be fabricated with a regular and/or complex geometry, characterized by macropores and uniform thickness. We present here a novel technique for direct writing (DW) with solution ESP to produce complex three-dimensional (3D) multiscale and ultrathin (∼1 μm) fibrous scaffolds with desirable patterns and geometries. This technique was simply achieved via manipulating technological conditions, such as spinning solution, ambient conditions, and processing parameters. Three different regimes in fiber morphologies were observed, including bundle with dispersed fibers, bundle with a core of aligned fibers, and single fibers. The transition between these regimes depended on tip to collector distance (Wd) and applied voltage (V), which could be simplified as the ratio V/Wd. Using this technique, a scaffold mimicking the zonal organization of articular cartilage was further fabricated as a proof of concept, demonstrating the ability to better mimic native tissue organization. The DW scaffolds directed tissue organization and fibril matrix orientation in a zone-dependent way. Comparative expression of chondrogenic markers revealed a substantial upregulation of Sox9 and aggrecan (ACAN) on these structures compared to conventional electrospun meshes. Our novel method provides a simple way to produce customized 3D ultrathin fibrous scaffolds, with great potential for TE applications, in particular those for which anisotropy is of importance. |
format | Online Article Text |
id | pubmed-5682611 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | American
Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-56826112017-11-15 Direct Writing Electrospinning of Scaffolds with Multidimensional Fiber Architecture for Hierarchical Tissue Engineering Chen, Honglin Malheiro, Afonso de Botelho Ferreira Braga van Blitterswijk, Clemens Mota, Carlos Wieringa, Paul Andrew Moroni, Lorenzo ACS Appl Mater Interfaces [Image: see text] Nanofibrous structures have long been used as scaffolds for tissue engineering (TE) applications, due to their favorable characteristics, such as high porosity, flexibility, high cell attachment and enhanced proliferation, and overall resemblance to native extracellular matrix (ECM). Such scaffolds can be easily produced at a low cost via electrospinning (ESP), but generally cannot be fabricated with a regular and/or complex geometry, characterized by macropores and uniform thickness. We present here a novel technique for direct writing (DW) with solution ESP to produce complex three-dimensional (3D) multiscale and ultrathin (∼1 μm) fibrous scaffolds with desirable patterns and geometries. This technique was simply achieved via manipulating technological conditions, such as spinning solution, ambient conditions, and processing parameters. Three different regimes in fiber morphologies were observed, including bundle with dispersed fibers, bundle with a core of aligned fibers, and single fibers. The transition between these regimes depended on tip to collector distance (Wd) and applied voltage (V), which could be simplified as the ratio V/Wd. Using this technique, a scaffold mimicking the zonal organization of articular cartilage was further fabricated as a proof of concept, demonstrating the ability to better mimic native tissue organization. The DW scaffolds directed tissue organization and fibril matrix orientation in a zone-dependent way. Comparative expression of chondrogenic markers revealed a substantial upregulation of Sox9 and aggrecan (ACAN) on these structures compared to conventional electrospun meshes. Our novel method provides a simple way to produce customized 3D ultrathin fibrous scaffolds, with great potential for TE applications, in particular those for which anisotropy is of importance. American Chemical Society 2017-10-18 2017-11-08 /pmc/articles/PMC5682611/ /pubmed/29043781 http://dx.doi.org/10.1021/acsami.7b07151 Text en Copyright © 2017 American Chemical Society This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License (http://pubs.acs.org/page/policy/authorchoice_ccbyncnd_termsofuse.html) , which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
spellingShingle | Chen, Honglin Malheiro, Afonso de Botelho Ferreira Braga van Blitterswijk, Clemens Mota, Carlos Wieringa, Paul Andrew Moroni, Lorenzo Direct Writing Electrospinning of Scaffolds with Multidimensional Fiber Architecture for Hierarchical Tissue Engineering |
title | Direct
Writing Electrospinning of Scaffolds with Multidimensional
Fiber Architecture for Hierarchical Tissue Engineering |
title_full | Direct
Writing Electrospinning of Scaffolds with Multidimensional
Fiber Architecture for Hierarchical Tissue Engineering |
title_fullStr | Direct
Writing Electrospinning of Scaffolds with Multidimensional
Fiber Architecture for Hierarchical Tissue Engineering |
title_full_unstemmed | Direct
Writing Electrospinning of Scaffolds with Multidimensional
Fiber Architecture for Hierarchical Tissue Engineering |
title_short | Direct
Writing Electrospinning of Scaffolds with Multidimensional
Fiber Architecture for Hierarchical Tissue Engineering |
title_sort | direct
writing electrospinning of scaffolds with multidimensional
fiber architecture for hierarchical tissue engineering |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5682611/ https://www.ncbi.nlm.nih.gov/pubmed/29043781 http://dx.doi.org/10.1021/acsami.7b07151 |
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