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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 microscope image (crossed polars, wave plate) of 6% aqueous CNC suspension (SB-6%), viewed between crossed polars with 530 nm red wave plate. The colors are due to the variations in orientation of the birefringent suspension.