Dynamic mechanical characterization of poly(glycerol sebacate)/poly (butylene succinate-butylene dilinoleate) blends for cardiac tissue engineering by flat punch nanoindentation

Merle B, Kraus X, Tallawi M, Scharfe B, El Fray M, Aifantis KE, Boccaccini AR, Göken M (2018)

Publication Status: Published

Publication Type: Journal article

Publication year: 2018

Journal

Materials Letters Elsevier

Publisher: ELSEVIER SCIENCE BV

Book Volume: 221

Pages Range: 115-118

DOI: 10.1016/j.matlet.2018.03.051

Abstract

The viscoelastic properties of polymer blends of poly(glycerol sebacate) (PGS) and poly(butylene succinate-dilinoleate) (PBS-DLA) copolymer intended for cardiac tissue patches are investigated by dynamic flat punch nanoindentation at frequencies ranging from 1 to 45 Hz. The storage modulus is found to depend weakly on the testing frequency, the lowest value being for 1 Hz, which corresponds to the usual heart rate. More significantly, it is found that varying the PGS content between 40 and 70 wt% allows tuning the storage modulus of the blends between 11 and 39 MPa. The reliability of the nanoindentation method is validated by reference dynamic mechanical measurements on thicker PBS-DLA samples using a tensile testing machine. (C) 2018 Elsevier B.V. All rights reserved.

Authors with CRIS profile

Benoit Merle Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften) Marwa Tallawi Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Aldo Boccaccini Lehrstuhl für Werkstoffwissenschaften (Biomaterialien) Mathias Göken Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Additional Organisation(s)

Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM) Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Related research project(s)

In-situ nanomechanics and FIB tomography of thin films (EXC315 EAM (A2-3)) Exzellenz-Cluster Engineering of Advanced Materials Nov. 1, 2012 - Oct. 31, 2017

Involved external institutions

West Pomeranian University of Technology Szczecin / Zachodniopomorski Uniwersytet Technologiczny w Szczecinie (ZUT) PL Poland (PL) Universität Bayreuth DE Germany (DE) University of Florida US United States (USA) (US)

How to cite

APA:

Merle, B., Kraus, X., Tallawi, M., Scharfe, B., El Fray, M., Aifantis, K.E.,... Göken, M. (2018). Dynamic mechanical characterization of poly(glycerol sebacate)/poly (butylene succinate-butylene dilinoleate) blends for cardiac tissue engineering by flat punch nanoindentation. Materials Letters, 221, 115-118. https://dx.doi.org/10.1016/j.matlet.2018.03.051

MLA:

Merle, Benoit, et al. "Dynamic mechanical characterization of poly(glycerol sebacate)/poly (butylene succinate-butylene dilinoleate) blends for cardiac tissue engineering by flat punch nanoindentation." Materials Letters 221 (2018): 115-118.

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