12284
When grafted beta - cyclodextrin is used as targeting sites , Pluronic polymers have been introduced on the surface of cellulose nanocrystals by means of inclusion interaction between beta - cyclodextrin and hydrophobic segment of the polymer .
 Chemical: beta - cyclodextrin; Chemical: beta - cyclodextrin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: beta - cyclodextrin; Chemical: beta - cyclodextrin