17886
Nanocarrier association with murine macrophage J774 cells expressing the MR is examined as a function of incubation time and temperature , nanocarrier size , dose , and PEG corona properties .
 PEG
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 PEG