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           _    _    _    _      ___     _    _   
  ____    | || | || | || | ||   / _ \\  | \  / || 
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 | [] ||  | \\_/ || | \\_/ || |  ___  ||| .  . || 
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 |_|`-`     `---`     `---`   `-`   `-` `-`  `-`  
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Text this: Ultrasensitive metadevices for gas sensing