28949
We recently reported that dispersing citrate - capped gold nanoparticles ( AuNPs ) in polymers such as polyethylene glycol ( PEG ) can achieve such a goal due to contributions from depletion stabilization .
 Chemical: citrate; Chemical: AuNPs; Chemical: polyethylene glycol; Chemical: PEG
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: citrate; Chemical: AuNPs; Chemical: polyethylene glycol; Chemical: PEG