8303
Our finding thus show that the antimicrobial polymers and oligomers exert toxicity toward Gram - negative bacteria by disrupting the morphology and structures of cell envelope and cytoplasm , including cellular components such as proteins and DNA , while exert toxicity toward Gram - positive bacteria by binding to and disrupting just the cell wall .
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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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