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By fitting an exciton - coupling model to a series of data sets recorded over a range of temperatures ( 17 - 85 degrees C ) and at different laser center wavelengths , we determined that the folded form of the tweezer is stabilized by a favorable change in the entropy of the local membrane environment .
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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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