Ultra-low temperature freezer with liquid nitrogen freezing USES difference:
1, liquid nitrogen, and the purpose of the cryogenic refrigerator is not the same, in laboratory, the material of liquid nitrogen used to temporarily frozen preservation, pretreatment and experimental materials;
Ultra-low temperature freezer is more for long-term preservation materials and experiment results;
2, difference on material processing, liquid nitrogen cell water into ice crystals instantly, prevent the function of enzymes and cells decomposition, to maximize the protection of cellular components;
And ultra-low temperature freezer cannot instantly cell or tissue at the core of the temperature fell to enzyme under the effect of temperature, but slower than liquid nitrogen rate, long-term cryopreserved.