14136
Here we describe polymersomes able to encapsulate up to 6 % ( w / w ) of doxorubicin ( DOX ) together with 30 % ( w / w ) of superparamagnetic iron oxide nanoparticles ( USPIO ; gamma - Fe ( 2 ) O ( 3 ) ) .
 Chemical: doxorubicin; Chemical: DOX; Chemical: iron oxide; Chemical: gamma - Fe ( 2 ) O ( 3 )
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; Chemical: DOX; Chemical: iron oxide; Chemical: gamma - Fe ( 2 ) O ( 3 )