3573
The design of pyridyl - based ligands for the separation of Am ( III ) from lanthanide ( III ) ions is considered , as well as ligands for the removal of metal ions such as Cu ( II ) or Zn ( II ) in neurological diseases such as Alzheimer ' s .
 Chemical: pyridyl; Chemical: Am ( III ); Chemical: lanthanide ( III ); Chemical: Cu ( II ); Chemical: Zn ( II )
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: pyridyl; Chemical: Am ( III ); Chemical: lanthanide ( III ); Chemical: Cu ( II ); Chemical: Zn ( II )