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This work addresses structural and nonequilibrium effects of the interactions between well - defined cationic poly ( amidoamine ) PAMAM dendrimers of generations 4 and 8 and the anionic surfactant sodium dodecyl sulfate ( SDS ) at the hydrophilic silica - water interface .
 Chemical: poly ( amidoamine ); Chemical: PAMAM; Chemical: sodium dodecyl sulfate; Chemical: SDS; Chemical: silica
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: poly ( amidoamine ); Chemical: PAMAM; Chemical: sodium dodecyl sulfate; Chemical: SDS; Chemical: silica