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. 2019 Apr 20;17(2):e2125. doi: 10.21859/ijb.2125

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Copyright © 2019 The Author(s); Published by National Institute of Genetic Engineering and Biotechnology.

This is an open access article, distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits others to copy and redistribute material just in noncommercial usages, provided the original work is properly cited.

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Figure 4. — A) Transmission electron microscopy (TEM) image of RADA16I fibrils formed at a final peptide concentration of 2.5 mg.L-1. B) Evaluation of cell cytotoxicity of purified RADA16I fibrils. Blank, cells not treated with RADA16I; green, cells treated with 0.5% RADA16I; violet, cells treated with 1% RADA16I. C) Evaluation of cell adhesivity of purified RADA16I fibrils. i, uncoated glass cover slips; ii, glass cover slips coated with 200µM synthetic RADA16I; iii, glass cover slips coated with 50µM recombinant RADA16I; iv, glass cover slips coated with 250µM recombinant RADA16I; v, glass cover slips coated with 500µM recombinant RADA16I; vi, glass cover slips coated with 1000µM recombinant RADA16I.