Immobilization of beta-cyclodextrin onto polypropylene nonwoven fabric based on photooxidative surface modification

We developed beta-cyclodextrin (CD)/polypropylene (PP) composite nonwoven fabrics (NWFs) via surface modification of PP using the photoactivated chlorine dioxide radical (ClO2 center dot) oxidation method. The hydrophilicity and dyeability of the PP NWFs were improved owing to the immobilization of beta-CD. In addition, the prepared beta-CD/PP composite NWFs showed sustained drug release for over 12 h in phosphate buffer, indicating that the beta-CD supported on PP fibers functioned successfully.