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. 2019 Feb 18;20(4):882. doi: 10.3390/ijms20040882

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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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Survival rate at 24 and 48 hpf in zebrafish embryos exposed to 100 mg/L of 25 or 115 nm SiO₂ NPs with different surface charges after chemical removal of chorion at 6 hpf. Data are represented as mean ± SD. * p < 0.05 compared with the control (ANOVA followed by Dunnett’s multiple comparison test).