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Platelet Activity of Coaxial Electrospun Scaffolds for Applications in Cardiovascular Tissue Engineering

[+] Author Affiliations
Valerie M. Merkle, Marcus Hutchinson, Phat L. Tran, Marvin J. Slepian

University of Arizona, Tucson, AZ

Jawaad Sheriff, Danny Bluestein

Stony Brook University, Stony Brook, NY

Xiaoyi Wu

University of Arizona, Tucson, AZStony Brook University, Stony Brook, NY

Paper No. SBC2013-14780, pp. V01AT17A027; 2 pages
doi:10.1115/SBC2013-14780
From:
  • ASME 2013 Summer Bioengineering Conference
  • Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments
  • Sunriver, Oregon, USA, June 26–29, 2013
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-5560-7
  • Copyright © 2013 by ASME

abstract

A biocompatible scaffold is vital to implant device design, tissue engineering, and drug delivery. Previous work has shown smooth muscle cell and human umbilical vascular endothelial cell viability, adhesion, proliferation, and migration on coaxially electrospun scaffolds. For vascular applications, these electrospun scaffolds need to be non-thrombogenic, while simultaneously not completely inhibiting the platelets role in hemostasis and augmenting angiogenesis.[1] Therefore, platelet activity on electrospun scaffolds needs to be assessed. In this study, we fabricated coaxial electrospun nanofibers in both 1:1 and 3:1 (gelatin:polyvinyl alcohol, volumetric flow ratios), as well as scaffolds composed of either gelatin or polyvinyl alcohol (PVA). Platelet deposition on the electrospun scaffolds was measured. Furthermore, the activity of human platelets on the electrospun scaffolds was assessed using a modified prothrombinase assay.[2]

Copyright © 2013 by ASME

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