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UV-Vis absorption spectra of LbL films of (a) [(CHI)-(CuPcS)-(CHI)-(AuNPs)]2 (dotted line) and [(CHI)-(AuNPs)-(CHI)-(CuPcS)]2 (solid line); (b) [(CHI)-(CuPcS)-(CHI)-(AuNPs)]2-Tyr. Inset shows a magnification of the band associated to the enzyme.
