“…Electrospun nanofibers have great applicability for drug delivery applications [16,[96][97][98][99][100][101], medical implants [102], nanocomposites for dental restoration [103], preservation of bioactive agents [104,105], tissue engineering [12,106], wound dressing [21,43,82], biosensors [107,108], molecular separation [109], filters [45,110,111], and protective clothing [112][113][114]. Potential applications of electrospun PU nanofibers are discussed in depth below.…”