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 _    _     ______             _    _     _  _   
| \  / ||  /_   _//     ___   | || | ||  | \| || 
|  \/  ||   -| ||-     /   || | || | ||  |  ' || 
| .  . ||   _| ||_    | [] || | \\_/ ||  | .  || 
|_|\/|_||  /_____//    \__ ||  \____//   |_|\_|| 
`-`  `-`   `-----`      -|_||   `---`    `-` -`  
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Text this: THERAPEUTIC PHOTOACTIVATION USING UPCONVERSION NANOPARTICLES