One leaf per tree (third or fourth fully expanded leaf from the top) was immediately
frozen in liquid nitrogen for molecular analyses.
Some people even opt to freeze their
heads in liquid nitrogen after they die in hopes of one day being revived (with the help of nano - bots).
Frozen but hardly halted, the lines of reprogrammed stem cells in the Massachusetts General Hospital laboratory of biologist Konrad Hochedlinger are preserved
in liquid nitrogen at -170 °C.
Absent too is that countercultural guru, Timothy Leary, who announced before his recent death that his head would be removed from his corpse and frozen
in liquid nitrogen so that it might later be defrosted and attached to a cloned or mechanically produced body.
So why isn't it catching on?Alkaline Hydrolysis Produces Ash - Like Remains Along with the idea of freezing
bodies in liquid nitrogen and then grinding them into a powder, there's a lot to be said for the concept of chemical or alkaline hydrolysis.
Rather than being dehydrated, cells undergoing vitrification are placed in a solution of chemicals that prevent ice formation and are
doused in liquid nitrogen so quickly that the solution and cells form a glass, preserving the cells until they are thawed.
What's important, we tell kids, is that if you dip a rubber
ball in liquid nitrogen, you can smash it with a hammer.
It's also significant that the crystals don't have to be cryo -
cooled in liquid nitrogen to protect them from radiation damage.
This study reveals the dynamics of the receptor at close to its operating temperature and thus gives a more realistic picture of its physiological function than it was possible before with conventional deep freeze
analyses in liquid nitrogen at minus 173 degrees Celsius.
In the field, he collected and preserved samples
in liquid nitrogen vapor, and these specimens are preserved at the Ambrose Monell Cryo Collection at the AMNH.
The scientists then froze the
rafts in liquid nitrogen and studied them under powerful microscopes to figure out how the ants kept everyone safe and the water out.
Then Celltex grows millions of stem cells from the fat in its Houston lab and stores them for
clients in liquid nitrogen at -300 degrees Fahrenheit, a process the company calls banking.
After one month, expanded cultures of transgenic (hNPCctx - GDNF) and unmodified (hNPCctx) neurospheres from the same original culture were cryoprotected and
banked in liquid nitrogen for later use.
For these experiments, embryos were fixed for 10 min in 3 % paraformaldehdye, freeze
cracked in liquid nitrogen, and incubated for 5 — 10 min in − 20 °C methanol.
Worldwide there are approximately 200 patients stored
permanently in liquid nitrogen, with a further two thousand people signed up for cryonics after death.
So, the night before my semi-involuntary demo, I select the most interesting things to
dip in liquid nitrogen.
Once she's obtained permission for her process, Wiigh - Masäk's clients will be
dunked in liquid nitrogen (obtained as a byproduct of the medical industry) which freezes them to -196 C. Wiigh - Mäsak says this makes a body very brittle, and subsequent agitation causes the body to break apart and eventually disintegrate.
8 Alternatively... A Swedish company, Promessa, will freeze - dry your
body in liquid nitrogen, pulverize it with high - frequency vibrations, and seal the resulting powder in a cornstarch coffin.
Trounson says he still has a stash of skin samples from critically endangered northern hairy - nosed wombats
stored in liquid nitrogen, in case someone ever wants to attempt to restore the species's numbers.
After incubation, coral fragments were sampled, snap
froze in liquid nitrogen and stored in − 80 C until further handled.
To turn the bugs into edible oils, researchers freeze - dried
them in liquid nitrogen and ground them into a fine powder in a blender.
Employees whisk the ingredients around in a steel bowl before bathing
it in liquid nitrogen gas.
In 2002, they obtained the original seed of both varieties, frozen
in liquid nitrogen, from the USDA's National Seed Storage Lab in Fort Collins.
These criteria, combined with recommended processing procedures (harvesting in a sterile manner, repeated washings, immersion in ethanol, freezing
in liquid nitrogen, freeze - drying, demineralization, and vacuum sealing), render DFDBA and FDBA grafts safe for human implantation.