27778
They did not reduce the viability of neuronal cells but were effectively internalized by the cells and induced dose - dependent cell cycle alterations , apoptosis by intrinsic pathway , and genotoxicity not related with double strand break production .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None