27463
The activation energy for the transfer determined from the temperature dependence of the rate of transfer is 12 . 7 kJ / mol for MTNa vesicles ( pH ~ 6 ) and 20 . 6 +/- 1 . 3 kJ / mol for MPNa ( pH ~ 7 . 60 ) .
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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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