17160
A redshift ( up to - 60 meV ) is observed for MoS2 monolayers with nonhalogenated solvent surroundings .
 Chemical: MoS2
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: MoS2