24369
Differential propensity of citrate - and polyethylene glycol - coated silver nanoparticles to bovine hemoglobin .
 Chemical: citrate; Chemical: polyethylene glycol; Chemical: silver
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: polyethylene glycol; Chemical: silver