7512
Release of NGF from the PCL - NGF capsules facilitated cell proliferation and viability , while the controlled release of GLN from the PLGA - GLN pellet resulted in A - GD - PLL microcapsule degradation and eventual PC12 cell death following a pre - specified period of time ( 4 weeks in this study ) .
 Chemical: PCL; Chemical: GLN; Chemical: PLGA; Chemical: GLN; Chemical: PLL
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: PCL; Chemical: GLN; Chemical: PLGA; Chemical: GLN; Chemical: PLL