“…As a significant macrocyclic compound 1 in supramolecular chemistry [2][3][4] produced from starch by enzymatic conversion, 5,6 cyclodextrin (CD), 7,8 consisting of several glucose subunits connected by α-1,4 glycosidic bonds (Chart 1), has gained much more attention recently due to its interesting applications in government-approved coronavirus drugs. 9,10 Actually, due to its nano-sized hydrophobic cavity, rigid and particular aqueous solubility and biocompatibility, 13 CD could be used widely in biomedicines such as drug delivery and pharmaceutical, [14][15][16] chemical industries and environmental engineering, 17,18 as well as food and agriculture.…”