28974
The time evolution of the aggregation extent and the conformational changes of the protein were followed by dynamic light scattering ( DLS ) and FTIR spectroscopy , respectively , whereas the morphology of the aggregates was observed by Atomic Force Microscopy ( AFM ) .
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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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