19234
Definition of formulation design space , in vitro bioactivity and in vivo biodistribution for hydrophilic drug loaded PLGA / PEO - PPO - PEO nanoparticles using OFAT experiments .
 Chemical: PLGA; Chemical: PEO - PPO - PEO
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: PLGA; Chemical: PEO - PPO - PEO