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The strain - stress relations of both normal and C ( 60 ) infiltrated RBC membranes are extracted from the data of AFM indentation , from which we proved that C ( 60 ) NP infiltration can affect the mechanical properties of RBC membrane and tend to weaken the tensile resistance of lipids bilayers .
 Chemical: C ( 60 ); Chemical: C ( 60 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: C ( 60 ); Chemical: C ( 60 )