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. 2023 Jun 28;28(13):5065. doi: 10.3390/molecules28135065

Figure 4.

Figure 4

UV–Vis spectra of (a) Cu:L-cys = 1:1 at t = 1 min (green line), t = 20 min (orange line), and t = 180 min (red line). The UV–Vis spectra of a solution containing 100 µM L-cys without Cu (cyan line) and 100 µM Cu without L-cys (black line) are also shown. (b) Cu:L-cys = 1:10 at t = 0.5 min (green line), t = 8 min (orange line), and t = 110 min (red line). The UV–Vis spectra of the solution containing 1000 µM L-cys without Cu (cyan line) and 100 µM Cu without L-cys (black line) are also shown.