10245
A novel polymer coating consisting of poly ( lactic - co - glycolic ) acid ( PLGA ) microsphere dispersed in poly ( vinyl alcohol ) ( PVA ) hydrogels was evaluated in combination with dummy sensors as a " smart " drug eluting biocompatible coating for implantable biosensors to prevent the foreign body response , and thus enhance sensor performance in vivo .
 Chemical: poly ( lactic - co - glycolic ) acid; Chemical: PLGA; Chemical: poly ( vinyl alcohol ); Chemical: PVA
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 ( lactic - co - glycolic ) acid; Chemical: PLGA; Chemical: poly ( vinyl alcohol ); Chemical: PVA