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Electroactive polymer scaffolds for cardiac tissue engineering
Linköping University, Department of Physics, Chemistry and Biology, Biosensors and Bioelectronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Physics, Chemistry and Biology, Biosensors and Bioelectronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Clinical and Experimental Medicine, Division of Cell Biology. Linköping University, Faculty of Medicine and Health Sciences.
Linköping University, Department of Clinical and Experimental Medicine, Division of Cell Biology. Linköping University, Faculty of Medicine and Health Sciences.
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2015 (English)In: Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015 / [ed] Bar-Cohen, SPIE - International Society for Optical Engineering, 2015, Vol. 9430, 94301T-1-94301T-7 p.Conference paper, Published paper (Refereed)
Abstract [en]

By-pass surgery and heart transplantation are traditionally used to restore the heart’s functionality after a myocardial Infarction (MI or heart attack) that results in scar tissue formation and impaired cardiac function. However, both procedures are associated with serious post-surgical complications. Therefore, new strategies to help re-establish heart functionality are necessary. Tissue engineering and stem cell therapy are the promising approaches that are being explored for the treatment of MI. The stem cell niche is extremely important for the proliferation and differentiation of stem cells and tissue regeneration. For the introduction of stem cells into the host tissue an artificial carrier such as a scaffold is preferred as direct injection of stem cells has resulted in fast stem cell death. Such scaffold will provide the proper microenvironment that can be altered electronically to provide temporal stimulation to the cells. We have developed an electroactive polymer (EAP) scaffold for cardiac tissue engineering. The EAP scaffold mimics the extracellular matrix and provides a 3D microenvironment that can be easily tuned during fabrication, such as controllable fibre dimensions, alignment, and coating. In addition, the scaffold can provide electrical and electromechanical stimulation to the stem cells which are important external stimuli to stem cell differentiation. We tested the initial biocompatibility of these scaffolds using cardiac progenitor cells (CPCs), and continued onto more sensitive induced pluripotent stem cells (iPS). We present the fabrication and characterisation of these electroactive fibres as well as the response of increasingly sensitive cell types to the scaffolds.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2015. Vol. 9430, 94301T-1-94301T-7 p.
Series
Proceedings of SPIE, ISSN 0277-786X ; 9430
National Category
Medical Materials
Identifiers
URN: urn:nbn:se:liu:diva-118260DOI: 10.1117/12.2084165ISI: 000355580900052OAI: oai:DiVA.org:liu-118260DiVA: diva2:813523
Conference
Electroactive Polymer Actuators and Devices (EAPAD) 2015
Available from: 2015-05-22 Created: 2015-05-22 Last updated: 2015-06-26Bibliographically approved

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Gelmi, AmyCieslar-Pobuda, ArturLjunggren, MonikaLos, MarekRafat, MehrdadJager, Edwin
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