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Histograms of the enhancement factors determined for the mixed (solid bars) and layer-by-layer (dashed bars) samples with the PCP complexes excited at 480 nm. Data shown in (a) and (b) correspond to the PCP concentration of 2 × 10−3 mg/mL and for the central parts of NW and for the ends of NW, respectively. Data shown in (c) and (d) correspond to the PCP concentration of 1 × 10−4 mg/mL and for the central parts of NW and for the ends of NW, respectively.
