8629
Therefore , at higher EWs although there is charge migration along the interface within the hydrophobic - hydrophilic domains , the exchange of protons between different DBs is likely the rate - limiting step of the overall conduction process .
 None
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