Cryopreservation Storage
Cryopreservation Storage - Related Videos
05:47
Do-It-Yourself Device for Recovery of Cryopreserved Samples Accidentally Dropped into Cryogenic Storage Tanks
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Cited by 5 •
2012
Here we present a low cost, durable cryotolerant device for sample retrieval from Dewar tanks filled with liquid nitrogen. The ease of construction and modular design of the device makes the process of sample retrieval from cryogenic tanks safe and easy.
04:24
Vitrification-based Cryopreservation: An Ultra-rapid Cooling Technique to Preserve Biological Specimens at Very Low Temperatures for Long-term Storage
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2023
In this video, we demonstrate an ultra-rapid cryo vitrification method for preserving biological samples. The method entails the use of a combination of cryoprotectants to protect the biological tissue from freezing damage by preventing intracellular ice crystal formation.
07:06
Mouse Sperm Cryopreservation and Recovery using the I·Cryo Kit
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Cited by 5 •
2011
Here we demonstrate the newly developed I•Cryo kit for mouse sperm cryopreservation. Two-cell stage embryo development with frozen-thawed sperm was improved consistently in 5 mouse strains with the use of this kit. Over a 1.5 year period, 49 genetically modified mouse lines were archived by sperm cryopreservation with the I•Cryo kit and later successfully recovered by IVF.
07:05
Isolation and Cryopreservation of Neonatal Rat Cardiomyocytes
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Cited by 49 •
2015
The isolation of neonatal rat cardiomyocytes is a time consuming and unpredictable procedure. This study describes methods for cryopreservation and thawing of neonatal rat cardiomyocytes that allows for more efficient use of cells. The thawed NRCMs can be used for various experiments without the need for performing isolations each time.
11:10
Cryopreservation of Preimplantation Embryos of Cattle, Sheep, and Goats
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Cited by 23 •
2011
Preimplantation embryos may be cryopreserved after placement into a hypertonic cryoprotective solution to cause cellular dehydration. After equilibration, ice crystal formation is induced in the solution surrounding the embryo. Further dehydration occurs as the embryo is slowly cooled to subzero temperatures before plunging into liquid nitrogen for storage.
FAQs
Cryoprotective agents help reduce cellular injury by limiting the damage associated with freezing, particularly ice-crystal formation. Their use is therefore a preparatory step before samples enter ultra-low-temperature storage. In developmental biology, this protection is important because embryos, gametes, stem cells, and tissues must retain sufficient integrity for later analysis, transplantation, or genetic studies.
Controlled-rate cooling and vitrification address the same central risk, but they do so through different cooling strategies. The first gradually lowers temperature, whereas the second is identified as an approach that reduces ice-crystal formation through vitrification. Selecting between them is part of sample preparation and can influence how well biological material remains suitable for subsequent developmental or genetic investigations.
Liquid-nitrogen conditions preserve samples by greatly slowing biochemical activity after the preservation step is complete. This extended storage environment allows collected material to remain available rather than requiring immediate analysis or repeated collection. For developmental biology, maintaining this low-activity state supports later comparison of developmental states using banked specimens.
Cryopreservation storage can be applied to embryos, germ cells, stem cells, developmental tissues, and other biological materials. This range makes the approach useful across studies that examine developmental states or preserve scarce specimens. The specific sample type determines what material is banked, but the broader benefit is continued access to specimens after their original collection period.
A basic workflow begins by preparing the biological material with cryoprotective agents, followed by either controlled-rate cooling or vitrification. The prepared sample is then placed in liquid-nitrogen conditions for long-term maintenance. This sequence links injury reduction during preparation with strongly reduced biochemical activity during storage, helping preserve material for later analysis, transplantation, or genetic studies.
In developmental biology, stored specimens support repeatable experiments across time and reduce dependence on continuously collecting new material. Banking embryos, germ cells, stem cells, or developmental tissues also helps researchers compare developmental states using samples preserved from earlier collection points. The resulting archive can support later analysis, transplantation, and genetic studies when the original specimens are scarce or no longer available.