30237
Adsorption of bovine serum albumin and bacteria fouling of Gram - negative Escherichia coli ( E . coli ) and Gram - positive Staphylococcus epidermidis ( S . epidermidis ) were investigated on the polymer - functionalized SS surfaces .
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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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