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. 2020 May 15;8:456. doi: 10.3389/fbioe.2020.00456

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Copyright © 2020 McCormick, Pearce, Kaye and Haneef.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The membranes gave an interesting stress vs. strain plot, as shown by the representative profile (A) and stretched to deformation (B). Young’s modulus (YM) for the elastic region (retains form) are high, with no significant difference between the dry [145.2 MPa (+/−23.46)] and wet (250.2 MPa (+/−73.08) membranes (C), whereas the plastic region (deformation) YM significantly increased from 5.15 MPa (+/−0.82) (dry) to 13.75 MPa (+/−3.47) (wet) (D), and the ultimate tensile strength (UTS) of the membrane significantly increased from 11.23 MPa (+/−1.5) (dry) to 20.29 MPa (+/−5.3) (wet) (E). Significant difference *p < 0.05 compared with dry material, t-test (n = 16 for dry, n = 7 for wet). Data presented: mean (+/− standard error).