11344
Biodegradable and amphiphilic block copolymers based on poly ( epsilon - caprolactone ) ( PCL = B ) and poly ( ethylene oxide ) ( PEO = A ) , with AB and ABA architectures , were assembled in " core - shell " NPs and loaded with both DTX and ZnPc employing the melting / sonication method .
 Chemical: poly ( epsilon - caprolactone ); Chemical: PCL; Chemical: poly ( ethylene oxide ); Chemical: PEO; Chemical: DTX; Chemical: ZnPc
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 ( epsilon - caprolactone ); Chemical: PCL; Chemical: poly ( ethylene oxide ); Chemical: PEO; Chemical: DTX; Chemical: ZnPc