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. 2017 Mar 9;7:131. doi: 10.1038/s41598-017-00278-6

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© The Author(s) 2017

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(a) CLSM images of mitochondrial membrane potential (JC-1 staining) in A549 cells pre-treated with Au₂₅P1₉ at an Au dose of 800 μM for 48 h, Scale bar is ~11 μm. (b) The express level of caspase-3, PARP and β-actin extracted from A549 cells pre-treated with serial doses of Au₂₅P1₉ for 48 h. (c) A549 cells apoptosis induced by Au₂₅P1₉ in a dose-dependent manner.