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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/).
Cytotoxicity assay of Fe–O, M-PEG, M-PEG–ZLDH (the nanocarriers), pristine sorafenib, and M-PEG–SO–ZLDH against normal 3T3 cells at 72 h. Results were calculated as mean ± standard deviation for n = 3 independent experiments.