The MasSpec pen speeds up cancer diagnosis from weeks to seconds.

“The ‘MasSpec pen’ … looks a lot like a big, white sharpie with a cord running down the back. When doctors touch the tip of the pen to a suspect tissue sample, and press a pedal, the pen releases a small droplet of water. The pen then sucks up the water along with some residual tissue into an onsite mass spectrometer and analyzes everything right there on the spot.” learn more

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