Electronic Tongue Based on Nanostructured Hybrid Films of Gold Nanoparticles and Phthalocyanines for Milk Analysis

Figure 2

UV-Vis absorption spectra for LbL films ranging from 1 up to 7 bilayers of (a) Au@PAH/CuTsPc and (b) Au@PAH/NiTsPc. The inset shows the absorbance at (a) 617 nm and (b) 619 nm versus number of bilayers for respective architectures.

(a)

(b)