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Effect of Thermosensitive Hydrogel Injection on Mechanical Behavior of Porcine Myocardium

[+] Author Affiliations
Bo Wang, Robbin Bertucci, Raj Prabhu, Lakiesha Williams, Jun Liao

Mississippi State University, Mississippi State, MS

Zhenqing Li, Jianjun Guan

Ohio State University, Columbus, OH

Paper No. SBC2013-14551, pp. V01AT11A002; 2 pages
  • 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


Myocardial infarctions (MI) afflict approximately 1.1 million individuals in the United States each year and exhibit an increasing prevalence worldwide due to the improvement of economic levels. Injection therapies for MI using biodegradable biomaterials with/without cells have been recognized to stabilize and preserve mechanical properties in the infarcted area in pre-clinical animal models. Recently, thermally responsive hydrogels, which can be injected from a syringe below 37 °C and then solidified at body temperature, are considered an attractive material for injection therapy.[1] The advantages of using an injectable hydrogel lie in its high moldability, capability of filling irregular shaped defects, and ability to be delivered to the in vivo environment by limited surgical invasion. However, it is still not very clear how the injection of thermosensitive hydrogel affects local tissue structure and mechanics. Thus, the goal of this study is to investigate possible alterations in myocardial structure and mechanical behavior after hydrogel injection using a well-controlled in vitro model.

Copyright © 2013 by ASME



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