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Marshmallow-like silicone gels used as insulation in containers for cryopreserved embryos — ScienceDaily

Because the genetic amendment of mice is more and more utilized in scientific and organic analysis, so too is the desire for an effective option to delivery cryopreserved embryos and sperm.

For the preservation of the frozen embryos/sperm, liquid nitrogen is used to stay the temperatures within the delivery packing containers beneath minus 150 °C. Those packing containers, which can be like a dry sipper with liquid nitrogen absorbers embedded inside of, are heavy and steadily dear, particularly when used for brief distance transportation.

On this find out about, a macroporous silicone gel was once examined for its skill to retain liquid nitrogen and its homes. Researchers packed the marshmallow-like gel (MG) right into a commercially to be had vacuum-insulated water bottle and examined its absorption of liquid nitrogen. They discovered that the gel was once ready to stay the temperature within the container beneath minus 150 °C for 10 hours.

As an additional take a look at, the researchers positioned mouse embryos within the container with the gel for 9 hours and located no transparent lower within the embryos’ survival fee.

For the reason that marshmallow-like gel confirmed little deterioration after publicity to the liquid nitrogen, the container can be utilized time and again. The method of fabricating MGs may be easy and can also be ready DIY-style by means of customers with out enjoy in chemical synthesis.

Those analysis effects had been printed on-line in Carried out Fabrics Nowadays on November 1, 2017. The paintings was once supported by means of the JSPS KAKENHI and the Sasakawa Medical Analysis Grant from the Japan Science Society.

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Fabrics equipped by means of Tohoku College. Observe: Content material is also edited for genre and duration.

Updated: December 6, 2017 — 5:01 pm

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