Figure 3 | Scientific Reports

Figure 3

From: Selective interaction between phytomediated anionic silver nanoparticles and mercury leading to amalgam formation enables highly sensitive, colorimetric and memristor-based detection of mercury

Figure 3

(a,b) UV-vis. absorption spectra and change of reaction colours (inset) for selective screening of AgNPs probe based detection of 20 different metallic cations; (c) HAADF-STEM image of amalgam formed between AgNP and Hg2+; (d) EDS mapping of overlapped elements; (e) EDS mapping of Ag; (f) EDS mapping of Hg and (g) EDS spectrum of the plotted area. Inset image shows (I) solution of AgNPs and (II) amalgam formed between AgNP and Hg2+ in detection reaction.

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