Beckman Center for Cryo-EM at Johns Hopkins

Sample Drop Off, Pick Up Information

  1. Users must drop off their clipped grids by Friday the week prior to their data collection.
    • If you are collecting on the Glacios, drop off your samples in the Glacios dewar.
    • If you are collecting on the Krios, drop off your sample in the Krios dewar.
  2. Users must fill out and drop off the grid inventory sheet with their drop off.
  3. You must pick up your samples within one month of the end of your collection. Otherwise, you risk your samples being disposed.
  4. Please contact Dr. Duncan Sousa ( with any questions.

Download sample drop off instructions here.