6761
Photochemical properties and activity of water - soluble polymer / c ( 60 ) nanohybrids for photodynamic therapy .
 Chemical: c ( 60 )
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: c ( 60 )