With the development of science, liquid nitrogen is widely used in biological sciences and medical fields. More and more embryos are stored in liquid nitrogen tanks. Many friends will ask, how long can embryos in liquid nitrogen tanks be stored!
In general, most biological materials can be stored at a low temperature of -196 ° C for at least 10 years without significant changes, so embryos in liquid nitrogen tanks can be stored for at least 10 years. Will long-term frozen embryos be affected?
First of all, the time that embryos are stored frozen in a liquid nitrogen tank has no effect on the quality of the embryos. The embryos are damaged during the freezing and resuscitation process, which affects the quality of the embryos. In addition, the quality of the embryos before freezing is not high, and the quality of the embryos will not be high after resuscitation. Therefore, high-quality embryos should be used during freezing. Here we remind everyone that using the correct embryo thawing and resuscitation method can reduce ice crystals and weight. Damage to cell structure caused by ice crystals.