Preparation of β-CD Supported PP NWFs. Ox-30, Ox-60, Ox-80, and Plasma were reacted with β-CD as follows. The samples were loaded in a 10 mL aqueous solution containing 5 mM β-CD, 20 mM EDC, and 20 mM DMAP for 12 h at room temperature. The samples were washed with distilled water and dried in vacuo at room temperature. The specimens were labeled Ox-30-CD, Ox-60-CD, Ox-80-CD, and Plasma-CD, respectively.