Due to their small size, spermatozoa lack sufficient internal volume to form large crystals that can damage their internal structure. This is the main reason why the slow freezing technique is effective in the case of spermatozoa.
The slow freezing technique is a simpler and less expensive option compared to vitrification. For this reason, it is still widely used for sperm cryopreservation, as it has a high survival rate and minimal impact on sperm quality.
Read the full article on: Cryopreservation & Vitrification of Embryos, Sperm & Eggs ( 44).
By Andrea Rodrigo B.Sc., M.Sc. (embryologist), Felipe Gallego Terris B.Sc, M.Sc (embriologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Mónica Aura Masip M.D., M.Sc. (gynecologist) and Cristina Algarra Goosman B.Sc., M.Sc. (psychologist).
Last Update: 06/01/2023
