7355
The stabilization of oil - water interfaces by the modified ferritin was investigated by dynamic surface tension measurements and compared to the individual components of the bionanoparticle conjugate , namely , unmodified ferritin and pure PNIMAAm of similar molecular weight .
 Chemical: PNIMAAm
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: PNIMAAm 
Answer:
 Chemical: PNIMAAm