18338
Astralen has been assembled with polyallylamine hydrochloride ( PAH ) by the layer - by - layer manner followed by Ag nanoparticle formation by means of a silver mirror reaction , giving the final structure of composite particles CaCO3 ( PAH / astralen ) x / Ag , where x = 1 - 3 .
 Chemical: polyallylamine hydrochloride; Chemical: PAH; Chemical: Ag; Chemical: silver; Chemical: CaCO3; Chemical: PAH; Chemical: Ag
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: polyallylamine hydrochloride; Chemical: PAH; Chemical: Ag; Chemical: silver; Chemical: CaCO3; Chemical: PAH; Chemical: Ag