22504
Poly ( N - isopropylacrylamide - co - hydroxyethylacrylamide ) thermosensitive microspheres : The size of microgels dictates the pulsatile release mechanism .
 Chemical: Poly ( N - isopropylacrylamide - co - hydroxyethylacrylamide )
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: Poly ( N - isopropylacrylamide - co - hydroxyethylacrylamide )