This increase in cooling rate reduces crystalline ice formation within and around small samples such as those found in X-ray crystallography and in oocyte and embryo vitrification
The turnaround time of sequencing is about 20 working days, so that embryo vitrification
and very low rate of embryo to plantlet conversion were the major problems observed in large-scale plant production in amla via somatic embryogenesis method.
However, the effects of DF on mouse embryo vitrification
are still unknown.
It is understood the couple had undergone embryo vitrification
, which involves fast-freezing embryos in liquid nitrogen for storage and thawing them before implantation.
But the clinic, which was at the centre of another IVF mistake last year after it implanted a couple's last embryo into another woman, said the loss was a well-known complication of embryo vitrification
Consequently, more attention has been focused on vitrification technology as an alternative to the slow freezing technique, especially after reporting the first embryo vitrification
pregnancy by Yokota el al.
As a result, vitrification showed the higher survival rate and embryo development rate than that of slow freezing and there were no significant differences in embryo developmental rate and cell numbers during culture period of pronuclear embryo vitrification
But with the embryo vitrification
technique, the embryo is plunged into liquid nitrogen - giving ice crystals no time to form.
After one failed attempt the hospital offered the Bloomers a new way of freezing their unused embryos - embryo vitrification
- that gave them a better chance of survival when they were ready to try again.
Vitrification: Embryo vitrification
at different cell stages, selection of vitrification carrier, practical aspects of setting up a clinical vitrification program, frozen embryo replacement protocols.
But the clinic said the loss was a well-known complication of embryo vitrification