Entheosparks t1_ixlgcu7 wrote on November 24, 2022 at 9:19 AM Reply to If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy Speed matters. The speed that something is frozen correlates to how many razor sharp ice crystals can form. Suspending the embryos in a solvent slows down water sublimation (freeze drying) For examble: embryos disolved in 1mL of glycerol will change temp from 37c to -200c in about 5 seconds. Permalink 158
Entheosparks t1_ixlgcu7 wrote
Reply to If freezing tissue generally damages the cells, how are we able to freeze human eggs and embryos for birthing later? by badblackguy
Speed matters. The speed that something is frozen correlates to how many razor sharp ice crystals can form.
Suspending the embryos in a solvent slows down water sublimation (freeze drying)
For examble: embryos disolved in 1mL of glycerol will change temp from 37c to -200c in about 5 seconds.