Fig. 1From: Tissue distribution and acute toxicity of silver after single intravenous administration in mice: nano-specific and size-dependent effectsParticle characterization by UV–Vis spectroscopy: full absorbance spectra of the tested silver nanoparticles. The optical density in the 600–800 nm range, which is typical for aggregate absorption, was not detected in any of tested AgNPs, indicating the absence of stable aggregates in these samplesBack to article page