Figure 3.

Evolution of UVvis maxima absorption bands of the silver sols in regions 1 and 2. Absorption bands in regions 1 and 2 are 400 to 500 nm and 600 to 700 nm, respectively. They are prepared with different PAA concentrations at a constant molar DMAB concentration (0.33 mM).

Rivero et al. Nanoscale Research Letters 2013 8:101   doi:10.1186/1556-276X-8-101
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