Fig. 3From: Synthesis of novel galactose functionalized gold nanoparticles and its radiosensitizing mechanismCytotoxicity of GNPs and GAL-PEG-GNPs at various concentrations in HepG2 cells. The abscissa indicates drug concentration; the ordinate indicates cell inhibition rate. A colorimetric CCK8 assay was performed to measure the cytotoxicity; the measurements follow vender’s protocolBack to article page