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. 2019 Feb 17;9(2):281. doi: 10.3390/nano9020281

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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SEM micrographs of beech wood samples dip-coated with lignin nanoparticles from Iroko–Norway spruce mixed sawdust before, after 1 day and after 5 days of UV exposure in an accelerated weathering tester at different magnifications.