24151
With these conditions , the particle diameter was 85 . 2 nm +/- 15 . 5 nm with a polydispersity index of 0 . 186 +/- 0 . 026 and viscosity of 14 . 6 cP +/- 1 . 2 cP .
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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