21874
The optimal polymer has narrow polydispersity ( PDI = 1 . 2 ) and high doxorubicin / MN loading ( 30wt . % / 28wt . % ) .
 Chemical: doxorubicin
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: doxorubicin