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. 2017 Feb 28;9(3):83. doi: 10.3390/toxins9030083

Figure 2.

Figure 2

Characterization of Ru(phen)32+-doped silica nanoparticles (RuNPs) and silver nanoparticles (AgNPs) used in AgNP–RuNP–cLFIA sensor: (a) Transmission electron microscopy (TEM) images of RuNPs; (b) TEM images of AgNPs; (c) Ultraviolet absorption spectrum of the AgNPs and fluorescence excitation and emission spectra of the RuNPs.