17852
The as - prepared Au cubic nanoframes exhibit tunable localized surface plasmon resonance peaks in the near - infrared region , but with much lower Ag content as compared with the initial Au - Ag nanocages .
 Chemical: Au; Chemical: Ag; Chemical: Au - 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: Au; Chemical: Ag; Chemical: Au - Ag