8036
Herein , a new concept is presented to assemble equilibrium Au nanoclusters of controlled size by tuning the colloidal interactions with a polymeric stabilizer , PLA ( 1k ) - b - PEG ( 10k ) - b - PLA ( 1k ) .
 Chemical: Au; Chemical: PLA; Chemical: PEG; Chemical: PLA
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: Au; Chemical: PLA; Chemical: PEG; Chemical: PLA