Freezing at a very low temperature, such as in liquid nitrogen (-190 C) to keep embryos, eggs or sperm viable.

Process to preserve by freezing, as in stem cell cryopreservation

process used to freeze stem cells.

Freezing of cells or tissue at very low temperatures.

The process of freezing (in liquid nitrogen) and storing eggs, sperm, and embryos for future use.

A technique used to keep frozen cells intact and functional for many years. Blood or marrow cells, including stem cells, can be stored for very long periods and remain functional if they are suspended in a fluid that contains a chemical that prevents cellular injury during freezing or thawing. This chemical is referred to as a cryoprotective agent. Glycerol is one of the most commonly used of such chemicals. The freezing temperature required to preserve cells is much lower (colder) than that of a household freezer. Stem cells used for later autologous transplantation are cryopreserved.

A process for storing biological material at very low temperatures for lengthy periods of time. Mixed solvents containing glycerol and dimethyl sulfoxide are used to protect cells from ice crystal formation.

the storage of plant material at very low temperatures (-196°C) in liquid nitrogen. [CUB

a method of sperm preservation for later use.

Procedure used to preserve and store embryos or sperm by freezing.

rapid freezing in liquid or vapor nitrogen at -196C to preserve (sperm) for future use.

Cryoprotection is the process of freezing a substance without damaging it. In the case of microalgae the objective is to prevent damage to the cell from ice crystals. It also preserves the nutritional value of the cells by slowing their metabolic rate to a suspended state. This prevents bacteria from growing and contaminating the concentrate.

Storage of biological materials at temperatures of -196¡C (-321¡F) until needed for transplant.

Storage of organs or tissues at very low temperatures. Embryos that are not used in an ART cycle can be cryopreserved for future use.

Literally, "freeze preserved." This is a proven method used to store embryos, sperm and even eggs for later use

The practice of freezing extra embryos from a couple's ART cycle for potential future use.

A process that preserves embryos by freezing them for later thaw and implantation.

Preserving substances at very low temperatures in liquid nitrogen at –196 degrees centigrade. E.g. frozen sperm, embryos, eggs, testicular tissue and ovarian tissue.

Storage of eggs and /or semen at temperatures well below zero in liquid nitrogen

and Cryostorage: Freezing of IVF embryos for later use.

A process by which something, such as cells, is frozen to preserve it for later use.

A process for preserving tissue for transplantation. Tissues are stored at a low temperature to prevent damage being caused by bacteria or chemical changes.

see cryogenic storage.

Preservation of cells, organs or tissues by maintenance at very low temperatures, typically by immersion in liquid nitrogen.

A procedure in which embryos or semen are frozen for future attempts at pregnancy. Fertility doctors will often fertilize more eggs than a woman needs in case initial pregnancies are not successful, or in case the woman hopes to have children again at a later time.

A technique used by many ART centers where the embryos are frozen and stored for later use. This procedure may lower the cost of subsequent ART procedures by eliminating the need for ovarian stimulation and egg retrieval.

Freezing sperm or embryos to store them for future use. At present, eggs cannot be cryopreserved because freezing damages them. l J l l N l l Q l l l X l Y l

This technique of freezing at very low temperatures is for the long term maintenance and storage of tissues, cells, or other biological materials. These cryogenically-preserved materials remain genetically stable and metabolically inert for long periods of time. Cryopreservation may involve freezers or dry ice (-80?C), or liquid nitrogen (-196 ?C). Back to glossary index

Embryos, sperm and eggs (only offered by some clinics) can be frozen and stored in liquid nitrogen at minus 196 degrees for use at a later date. They are passed through a series of specially designed solutions which help to protect the cells from damage during the freezing and thawing processes. to top of page

the freezing of embryos, eggs and sperm.

Français] The storage of living materials at very low temperatures within liquid nitrogen to protect against damage.

Freezing of a specimen, either semen or embryos

The freezing of oocytes, spermatozoa, eggs or embryos and their storage in liquid nitrogen.

preservation of live cells at low temperature.

Storage by freezing, used for embryos and eggs.

To preserve by freezing. Usually bone marrow, or stem cells to be used in future transplants.

cooling and storing cells in a frozen state at a temperature which provides high survivability when thawed (-196°C for sperm cells)

The freezing process of embryos or sperm.

is the term used for the different cell freezing techniques involved in oocyte freezing, storage and the thawing processes.

A technique for preserving tissue through freezing that is used to preserve embryos for transfer at a later date. Cryopreserved embryos are also referred to as frozen embryos.

Freezing of embryos or sperm in liquid nitrogen.

A technique for freezing tissue or cells to preserve for use at a later date. In this report, cryopreserved embryos are referred to as frozen embryos.

A procedure used to preserve (by freezing) and store embryos or gametes (sperm).

A special freezing technique used to preserve embryos and sperm for future use in an ART procedure

A dehydration and freezing process used to preserve embryos, sperm and other types of tissue. close window

The process of cooling and storing cells at a temperature below the freezing point (-196 C) that provides high survivability when thawed.

To preserve by freezing. Bone marrow harvested for an autologous BMT, for example, is cryopreserved.

The preservation of sperm or embryos by freezing, usually by immersion in liquid nitrogen.

Maintaining the viability of cells or tissue by storing at very low temperatures (freezing) -- used to preserve and store embryos or gametes (sperm or oocytes).

Preservation by subjection to extremely low temperatures.

the preservation of cells (blood), tissue, or organs by storing them at very low temperatures.

A technique that involves freezing and preserving embryos or sperm for transfer at a later date.

the process of storing biological material at low temperatures often for long periods of time. In the case of embryo storage, embryos are frozen within several days of formation and progressively lowered in temperature until they can be stored in liquid nitrogen (-196 degrees Celsius).

Preservation by freezing and storage.

The storage of gametes or embryos by freezing at low temperatures.

Storing tissue or cells by freezing them in liquid nitrogen.

A laboratory technique in which sperm or embryos are frozen in liquid nitrogen and stored for future use.

The preservation of living cells, tissues or organs by subjecting them to very low temperature processes. Cells and tissues preserved by this method maintain viability even after thawing and transplantation.

to preserve by freezing. Autologous patients will have their stem cells cryopreserved after collection then thawed prior to transplant.

The storage of the sperm, embryos or eggs by freezing at a low temperature (-196°C).

the act of freezing and thawing.

the process of freezing and storing sperm or embryos for later use.

Cryopreservation is a process of freezing sperm and embryos at very low temperatures (-196°C).

process by which sperm or embryos are frozen for later use

Ultra-low temperature storage of cells, tissues, embryos or seeds. This storage is usually carried out using temperatures below 100° C

Freezing embryos, eggs or sperm in liquid nitrogen to keep them viable.

The preservation of tissue by freezing techniques.

Freezing quickly and then storing, as in sperm, embryos, and, more recently, unfertilized eggs.

Cryopreservation is a process where cells or whole tissues are preserved by cooling to low sub-zero temperatures, such as (typically) 77 K or −196 °C (the boiling point of liquid nitrogen). At these low temperatures, any biological activity, including the biochemical reactions that would lead to cell death, is effectively stopped. However, when vitrification solutions are not used, the cells being preserved are often damaged due to freezing during the approach to low temperatures or warming to room temperature.