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. 2018 Jul 23;13:4283–4290. doi: 10.2147/IJN.S165201

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© 2018 Raghavendra et al. This work is published and licensed by Dove Medical Press Limited

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(A) An image showing pep-ZnO NPs endocytosed by U87MG cells through integrin receptors. The background was adjusted to clearly delineate the cell periphery. The scale bar corresponds to 50 µm. (B) The mean fluorescence intensity of peptide functionalized ZnO NPs (pep-ZnO) for MCF-7 and U87MG cells at different incubation times. (C) ICP-MS measurements for MCF-7 and U87MG cells exposed to pristine and pep-ZnO NPs for 24 hrs confirmed that ZnO NPs uptake was >5 times higher for U87MG exposed to pep-ZnO NPs.