In fact, a frozen egg may hypothetically remain in the state of suspended animation indefinitely. The tricky part is minimizing damage to the organelles by avoiding crystallization in the water component of the egg. The science of cryobiology is the art of carefully transporting the egg’s internal cell water (dehydration) in exchange for the protective “anti-freeze”. Frozen Egg Bank Inc uses specially formulated solutions to perform this process thus shielding the internal structures from physical or osmotic damage.
Science of Egg FreezingLong Pham
The goal of egg freezing is to arrest all metabolic activity inside the cell by submerging it into a very cold environment. This will effectively stop the biologic clock by suspending further egg development until it is time for egg thawing.
The human egg cell is truly a marvel of molecular engineering designed to replicate the egg’s DNA and to merge with the sperm DNA. The newly formed embryo may then carry the characteristics of the parental cells.
Needless to say not all eggs will be equally as tolerant during the rigors of egg freezing and some may be more susceptible to damage than others. Furthermore, at the time the eggs are harvested they may already be chromosomally abnormal which will lead to inadvertent preserving of the abnormality. Unfortunately this cannot be anticipated ahead of time, which further explains why not all eggs, fresh or frozen, may lead to a healthy pregnancy.