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 __   _     _____     ______   __   __            
| || | ||  |  ___||  /_____//  \ \\/ //     ___   
| '--' ||  | ||__    `____ `    \ ` //     /   || 
| .--. ||  | ||__    /___//      | ||     | [] || 
|_|| |_||  |_____||  `__ `       |_||      \__ || 
`-`  `-`   `-----`   /_//        `-`'       -|_|| 
                     `-`                     `-`

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Text this: Tumor extracellular microenvironment responsive carbon dots for enhanced cancer theranostics