Giardia lamblia – Sample Preparation for Cryo-SEM

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Application Note for Leica EM ACE900 – A 100 mesh copper grid (12 um thickness) was dipped into a concentrated Giardia suspension and sandwiched between two flat 3 mm aluminum specimen carriers with scratched surfaces. Subsequently, the sandwich was transferred to the widened hole of a middle plate (3.1 mm diameter). A 50 um spacer ring was added on top and the specimen immediately frozen with an HPM100 high-pressure freezing machine without using alcohol as synchronization fluid.

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