11280
Herein , we demonstrate a design and synthesis of a new star - shaped cationic polymer containing a gamma - cyclodextrin ( gamma - CD ) core and multiple oligoethylenimine ( OEI ) arms with folic acid ( FA ) linked by a bioreducible disulfide bond for efficient targeted gene delivery .
 Chemical: gamma - cyclodextrin; Chemical: gamma - CD; Chemical: oligoethylenimine; Chemical: OEI; Chemical: folic acid; Chemical: disulfide
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: gamma - cyclodextrin; Chemical: gamma - CD; Chemical: oligoethylenimine; Chemical: OEI; Chemical: folic acid; Chemical: disulfide