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. 2023 Jul 24;13:11957. doi: 10.1038/s41598-023-38518-7

Figure 5.

Figure 5

FTIR spectra (area of interest) of both QD-loaded PSMPs and unloaded, plain PSMPs, measured with two different PSMP concentrations, that reveal concentration and preparation-related changes in the intensity of the carbonyl peak at 1744 cm−1. The slight offset of the IR spectra (baseline value below 0) is caused by the normalization procedure. The complete IR spectra are provided in the SI (see Figure S4).