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Novel thin-walled nerve conduit with microgrooved surface patterns for enhanced peripheral nerve repair
University of Manchester.
University of Manchester.
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Anatomy. University of Manchester.
University of Manchester.
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2010 (English)In: Journal of materials science. Materials in medicine, ISSN 0957-4530, E-ISSN 1573-4838, Vol. 21, no 10, 2765-2774 p.Article in journal (Refereed) Published
Abstract [en]

Randomly aligned nerve cells in vitro on conventional culture substrata do not represent the complex neuronal network in vivo and neurites growing in uncontrolled manner may form neuroma. It is of great importance to mimic the organised growth pattern of nerve cells in the study of peripheral nerve repair. The aim of this work was to modify and optimize the photolithographic technique in creating a reusable template in the form of a silicon wafer that could be used to produce contact guidance on biodegradable polymer surface for the orientated growth of nerve cells. Micro-grooves (approximately 3 μm in depth) were etched into the silicon template using KOH at increased temperature. The originality of this work lies in the low cost and high efficiency method in producing microgrooves on the surface of biodegradable ultra-thin polymer substrates (50-100 μm), which can be readily rolled up to form clinically implantable nerve conduits. The design of a pattern with small ridge width (i.e., 5 μm) and bigger groove width (i.e., 20 μm) favored the alignment of cells along the grooves rather than on the ridges of the patterns, which minimized the effect of cross growing of neurites between adjacent grooves. Effectively, enhanced nerve regeneration could be anticipated from these patterned conduits.

Place, publisher, year, edition, pages
Springer, 2010. Vol. 21, no 10, 2765-2774 p.
National Category
Basic Medicine
Identifiers
URN: urn:nbn:se:umu:diva-73225DOI: 10.1007/s10856-010-4120-7ISI: 000283371200006PubMedID: 20878209OAI: oai:DiVA.org:umu-73225DiVA: diva2:630467
Available from: 2013-06-19 Created: 2013-06-19 Last updated: 2017-12-06Bibliographically approved

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CiteExportLink to record
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  • apa
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