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. 2022 Sep 13;11(9):1801. doi: 10.3390/antiox11091801

Figure 2.

Figure 2

Figure 2

FTIR Spectra of mucoadhesive oral patches (a,b): Reference (red line) and F-UBE-HPMC (black line) in the range 4000–2200 cm−1 (a) and 2000–400 cm−1 (b); X-ray Diffractograms of Reference and F-UBE-HPMC oral mucoadhesive patches (c); Thermogravimetric analysis coupled with differential thermal analysis of the mucoadhesive oral patches (d). Swelling rate% over 6 h of F-UBE-HPMC versus R (e). R—Reference (patch without UBE); F-UBE-HPMC—mucoadhesive oral patches loaded with UBE; UBE—U. barbata dry ethanol extract.