Preparation and characterization of innovative electrospun nanofibers loaded with pharmaceutically applicable ionic liquids

•Nanofibers with loaded ionic liquid were successfully produced.•Rised IL content reduce viscosity and increase conductivity electrospinning solution.•PEO-IL nanofibers' average diameter decreased with the increased IL content.•Thicker nanofibers were obtained with a higher molecular weight polymer.•Abcence of hydrogen bonds between ILs and PEO in electrospun nanofibers.