19823
A fourth generation PAMAM dendrimer has been successfully employed for the development of a single step synthesis strategy for self - assembled Ag - Au nanohybrid structures .
 Chemical: PAMAM; Chemical: Ag; Chemical: Au
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: PAMAM; Chemical: Ag; Chemical: Au