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In extending our previous work where we introduced a new candidate scaffolds for vascular grafts electrospun from a blend solution of PLGA , gelatin , and elastin ( PGE ) , this study aimed to evaluate the potential of PGE scaffolds to support nonthrombogenic monolayers of primary isolates of human aortic endothelial cells ( HAECs ) , as assessed by a combination of biochemical , molecular , and bioinformatics - based analyses .
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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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