12046
SiO ( 2 ) NPs were also found to induce oxidative stress in a dose - dependent manner , indicated by depletion of glutathione and induction of reactive oxygen species ( ROS ) generation and lipid peroxidation .
 Chemical: SiO ( 2 ); Chemical: glutathione; Chemical: oxygen
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: SiO ( 2 ); Chemical: glutathione; Chemical: oxygen