11663
The nature of the excitation coupling and transfer could not be fully resolved here , but injection of an electron into the DNA from the excited nanoparticle and subsequent coupled transfer of charge ( Dexter ) and delocalized exciton ( Frenkel ) is the most probable mechanism .
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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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