23354
We applied this probe for visual detection of 1 ppm NO2 in the gas phase and fluorescence imaging of NO2 in macrophage cells treated with a nitrogen dioxide donor .
 Chemical: NO2; Chemical: NO2; Chemical: nitrogen dioxide
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: NO2; Chemical: NO2; Chemical: nitrogen dioxide