29564
The purpose of this investigation was to design novel pentablock copolymers ( polylatide - polycaprolactone - polyethylene glycol - polycaprolactone - polylatide ) ( PLA - PCL - PEG - PCL - PLA ) to prepare nanoparticle formulations which provide continuous delivery of steroids over a longer duration with minimal burst effect .
 Chemical: polylatide; Chemical: polycaprolactone; Chemical: polyethylene glycol; Chemical: polycaprolactone; Chemical: polylatide; Chemical: PLA; Chemical: PCL; Chemical: PEG; Chemical: PCL; Chemical: PLA; Chemical: steroids
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: polylatide; Chemical: polycaprolactone; Chemical: polyethylene glycol; Chemical: polycaprolactone; Chemical: polylatide; Chemical: PLA; Chemical: PCL; Chemical: PEG; Chemical: PCL; Chemical: PLA; Chemical: steroids