16152
The aggregation and interfacial behavior of mixtures of anionic ( sodium dodecylsulfate , SDS ) and cationic ( dodecylammonium bromide , DTAB ) surfactants were investigated .
 Chemical: sodium dodecylsulfate; Chemical: SDS; Chemical: dodecylammonium bromide; Chemical: DTAB
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: sodium dodecylsulfate; Chemical: SDS; Chemical: dodecylammonium bromide; Chemical: DTAB