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dc.contributor.authorAbu-Rub, Mohammad T.
dc.contributor.authorZeugolis, Dimitrios I.
dc.contributor.authorMcMahon, Siobhan
dc.contributor.authorPandit, Abhay
dc.date.accessioned2014-02-26T15:54:30Z
dc.date.available2014-02-26T15:54:30Z
dc.date.issued2011-01-11
dc.identifier.citationMohammad T. Abu-Rub, Kristen L. Billiar, Maarten H. van Es, Andrew Knight, Brian J. Rodriguez, Dimitrios I. Zeugolis, Siobhan McMahon, Anthony J. Windebank and Abhay Pandit (2011) 'Nano-textured self-assembled aligned collagen hydrogels promote directional neurite guidance and overcome inhibition by myelin associated glycoprotein'. Soft Matter, .en_US
dc.identifier.urihttp://hdl.handle.net/10379/4230
dc.descriptionJournal articleen_US
dc.description.abstractThe development of nerve guidance conduits is constantly evolving as the need arises for therapies for spinal cord injury. In addition to providing a path for regrowing axons to reconnect with their appropriate targets, the structural and biochemical cues provided by these conduits should be permissive for directional neurite outgrowth and be protective against inhibition in the vicinity of the injury site. Here, we adapted the use of iso-electric focusing to drive the alignment of supramolecular fibrils into self-assembled collagen hydrogels ([similar]300 µm diameter), and tested those hydrogels for the ability to direct and enhance the migration of neurites. Structural characterization revealed anisotropic alignment of nanofibrillar aggregates ([similar]20 nm diameter), arranged in micron-scale bundles ([similar]1 to 2 µm diameter) similar to the hierarchical size scales observed in native tissues. Neurite outgrowth extended bidirectionally along the axes of aligned hydrogels. Furthermore, it was shown that, as opposed to poly-D-lysine, neurite outgrowth on aligned hydrogels is not inhibited in the presence of myelin-associated glycoprotein (p > 0.05). These results highlight for the first time a structural and biochemical role for iso-electrically aligned collagen hydrogels in controlling neuronal growth, and indicate that the short-term signaling associated with these hydrogels can be used in adjunct therapy following injury to the spinal cord.en_US
dc.formatapplication/pdfen_US
dc.language.isoenen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.ispartofSoft Matteren
dc.subjectSpinal cord injuryen_US
dc.subjectCollagen hydrogelsen_US
dc.titleNano-textured self-assembled aligned collagen hydrogels promote directional neurite guidance and overcome inhibition by myelin associated glycoproteinen_US
dc.typeArticleen_US
dc.date.updated2014-02-24T22:30:37Z
dc.local.publishedsourcehttp://dx.doi.org/10.1039/C0SM01062Fen_US
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funder|~|
dc.internal.rssid5896144
dc.local.contactSiobhan Mcmahon, Department Of Anatomy, Nui, Galway. 2838 Email: siobhan.mcmahon@nuigalway.ie
dc.local.copyrightcheckedNo
dc.local.versionACCEPTED
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