13662
The side chain amine functionality instills pH - responsive behavior , which makes these cationic polymers attractive candidates for drug delivery applications , as well as for conjugation of biomolecules .
 Chemical: amine
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: amine