Fig. 5
Reprinted with permission from (Analytical Chemistry 2015; 87: 1536–1543). Copyright (2015) American Chemical Society
Absorption enhancement for a phenol red, b 10Â nm Au NPs and c envy green for different concentrations C of 500Â nm PS scatterers: C1Â =Â 0.6Â nM and C2Â =Â 3Â nM. The insets in b and c show the normalised transmission spectrum T and the LOD is defined as 3 times the noise level. The error bars correspond to the standard deviation over five independent measurements.