17110
Injectable superparamagnets : highly elastic and degradable poly ( N - isopropylacrylamide ) - superparamagnetic iron oxide nanoparticle ( SPION ) composite hydrogels .
 Chemical: poly ( N - isopropylacrylamide ); Chemical: iron oxide
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 ); Chemical: iron oxide