10246
A comparative study of mesoporous matrices designed for both drug - loading methods , impregnation ( IP ) and surfactant - assisted drug loading ( also denoted as one - pot , OP ) , has been carried out evaluating their physicochemical characteristics , cell response , drug delivery profiles , and antibacterial activity .
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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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