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. 2016 Nov 2;6:36296. doi: 10.1038/srep36296

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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(a) Illustration of the surface structure, consisting in alternating microstripes with periodical LIPSS nanopatterns oriented perpendicularly by rotating the laser beam polarization. The total period between alternating stripes is 40 μm. (b) Illustration of a similar surface structure alternating vertical LIPSS nanopatterns and non-treated microstripes, again with a period of 40 μm.