2665
As - grown devices can present mobilities exceeding 10 ( 4 ) cm ( 2 ) V ( - 1 ) s ( - 1 ) at room temperature and , because the contacts deposited on graphene are only exposed to acetone and isopropanol , the method is compatible with almost any contacting material .
 Chemical: graphene; Chemical: acetone; Chemical: isopropanol
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: graphene; Chemical: acetone; Chemical: isopropanol