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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 Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Size distribution of 5–15 nm SiNPs determined by DLS measurements: dispersed in deionized water (A), and dispersed in DMEM with 10% of FBS (B). Representative images generated by Zetasizer Nano ZS are presented.