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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Polarized light image (crossed polars, 530 nm red wave plate) of film cast from 6 wt % CNC suspension (SB-6%) on glass showing region with cracks between bands.