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The aim of the research is to develop a method for betulin integration into electrospinning solutions to electrospun qualitative nanofibers webs morphology with high surface area and increase bioavailability. The main challenge in this study is to prepare betulin - containing electrospinning solutions with suitable concentrations due to limited betulin solubility in water and low alcohol concentrations. Tree concentrations of betulin extracts were obtained. The operation sequence to obtain electrospinning solution...