20114
This simple and robust method affords well - defined polymer composite nanoparticles with mean diameters in a range of 100 - 200 nm and with narrow polydispersity indices as determined by dynamic light scattering and transmission electron microscopy .
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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:
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