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Characterization of glutathione-coated Au-Ag alloy nanoparticles (GS-Au/AgNPs). A) Typical transmission electron microscopy (TEM) image of GS-Au/AgNPs. B) A core size of 2.6±0.2 nm, and dynamic light scattering analysis showing a hydrodynamic diameter (HD) of 3.1±0.3 nm in aqueous solution. C) STEM and EOS mapping images of the GS-Au/AgNPs with a Au/Ag molar ratio of 1.4. scale bar=2 nm
