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 __   _     ______    ____      _____             
| || | ||  /_   _//  |  _ \\   |  ___||   ____    
| '--' ||   -| ||-   | |_| ||  | ||__    |    \\  
| .--. ||   _| ||_   | .  //   | ||__    | [] ||  
|_|| |_||  /_____//  |_|\_\\   |_____||  |  __//  
`-`  `-`   `-----`   `-` --`   `-----`   |_|`-`   
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Text this: Polypyrrole nanospheres with magnetic and cell-targeting capabilities