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  ______    _____     ____       ___      ______  
 /_   _//  |  ___||  |  _ \\    / _ \\   /_   _// 
   | ||    | ||__    | |_| ||  | / \ ||  `-| |,-  
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 /__//     |_____||  |_|\_\\    \___//     |_||   
 `--`      `-----`   `-` --`    `---`      `-`'

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Text this: Functionalization effect on the electronic properties of single walled carbon nanotubes