Risk of Contamination of Gametes and Embryos during Cryopreservation and Measures to Prevent Cross-Contamination

Figure 6

Sequence of images showing how the Esther system works. (a) Suspension of the Esther to remove its cap. (b) Insertion of non-Esther samples without it remaining in the LN₂ container exposed to the environment. (c) Close of Esther. (d) Esther immersion (with as samples) in the LN₂ cylinder. (e) Image showing Esther’s full format.

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