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. 2017 Jun 23;22(7):1047. doi: 10.3390/molecules22071047

Figure 2.

Figure 2

UV-Vis absorption spectra of AuNPs-Ch in PBS (a), EGR-AuNPs-Ch in PBS (b) in the solution of the Tyr/EGR-AuNPs-Ch mixture (c) and 0.3 mg/mL Tyr in PBS (d). The path length is 0.05 cm.