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Got ice rings and want to get rid of them?
While the crystal is in the beam, carefully try the following.
Try annealing the crystal by blocking the stream for a few seconds, allowing the crystal to thaw, then unblock the stream to cool the crystal again. (Reference: New techniques in macromolecular cryocrystallography: macromolecular crystal annealing and cryogenic helium, B. Leif Hansona, Constance A. Schallb and Gerard J. Bunick, Journal of Structural Biology
Volume 142, Issue 1, April 2003, Pages 77-87)
Try washing the crystal with liquid nitrogen. Using a pipette, carefully aspirate liquid nitrogen into the pipette, then dispense several drops or even a gentle stream over the crystal and mount. A liquid nitrogen wash can also be used to remove creeping ice from caps, pins and loops.
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Tel: 949-425-1321
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