Frozen

... such as tardigrada (water bears) use the sugar trehalose to prevent ice crystal formation, and thus they can survive even if they were throughly frozen and then thawn. Trehalose synthesis and other metabolic changes take some time, though, so your water bear will not survive if you simply drop ...

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Individual cells or very small groups of cells such as an early embryo can be easily frozen and succesfully thawn after decades, and probably after a nearly limitless amount of time if storen properly (e.g. in liquid nitrogen or colder). However, currently there are ...

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... blarney. i mean, freezing cells so that they will reanimate in the distant future? couldnt it possibly cause severe tissue damage in a body, to be frozen like that for so long? it seems far fetched to take someone, freeze them , and then bring them back. even on the cellular level, i just dont ...

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... are the biggest things there are that survive some degree of cryoprservation - and even that is not a real thing, since they do not get completely frozen, but instead alter their cellular fluids in a way that prevents them from completely freezing over. That is, you cannot store a frog in a liquid ...

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My lab has frozen peripheral blood mononuclear leukocytes which are contaminated by gram positive rods. These cells are extremely important and we are looking for a way to transform these cells into a B-Lymphoblastoid immortal ...

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