13388
The increase in ROS formation and cell death was assayed using the fluorescent probe 2 , 7 - dichlorofluorescin diacetate ( DCFH - DA ) and the trypan blue exclusion assay .
 Chemical: 2 , 7 - dichlorofluorescin diacetate; Chemical: DCFH - DA; Chemical: trypan blue
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: 2 , 7 - dichlorofluorescin diacetate; Chemical: DCFH - DA; Chemical: trypan blue