18862
The hierarchical structure was studied by PXRD , TEM , EDX , EELS , AFM , and solid - state NMR spectroscopy , revealing a high level of order on both the atomic and mesoscale , suggesting fairly strong interactions along the organic - inorganic hybrid interface .
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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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