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To understand the differences between the gene delivery properties of the hyperbranched polylysine analogs on the one hand and the dendritic and linear polylysines on the other hand , the uptake and trafficking of the corresponding polyplexes were investigated .
 Chemical: polylysine; Chemical: polylysines
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: polylysine; Chemical: polylysines