8290
Zhou and co - workers ( Zhou et al . , Nano Lett . 2008 , 8 ( 3 ) , 859 - 865 ) designed , synthesized , and tested a combinatorial library of 80 surface modified , that is decorated , multi - walled carbon nanotubes for their composite nanotoxicity using six endpoints all based on a common 0 to 100 activity scale .
 Chemical: carbon
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: carbon