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. 2022 Sep 1;29(1):2831–2845. doi: 10.1080/10717544.2022.2118399

Figure 2.

Figure 2.

Characterization of INS–SOS complex. A: Scanning electron microscopy; (B) Fourier transform infrared spectroscopy; (C) differential scanning calorimetry thermograms. (a) INS; (b) SOS; (c) physical mixture of INS and SOS; (d) INS–SOS. Scale bar = 5 μm. INS, insulin; SOS, sodium n-octadecyl sulfate.