This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/term.2793 This article is protected by copyright. All rights reserved. Title Bundling of axons through a capillary alginate gel enhances the detection of axonal action potentials using microelectrode arrays. Short running title A three-dimensional functional model of a peripheral nerve using a capillary alginate gel Authors Dale S. George 1ǂ , Wesley A. Anderson 1ǂ , Frank Sommerhage 2 , Alicia R. Willenberg 3 , Robert B. Hines 3 , Alexander J. Bosak 3 , Bradley J. Willenberg 3, 4 , Stephen Lambert 5 * Affiliations 1 Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL, USA 2 NanoScience Technology Center, University of Central Florida, Orlando, FL, USA, 3 Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA, 4 Saisijin Biotech LLC, St. Cloud, FL, USA 5 Department of Medical Education, College of Medicine, University of Central Florida, Orlando, FL, USA *Correspondence to: stephen.lambert@ucf.edu Stephen Lambert, Room 255, Burnett School of Biomedical Sciences, UCF College of Medicine, 6850 Lake Nona Blvd, Orlando, FL 32827 ǂ Both authors contributed equally