Scientists discovered in Arctic fish natural antifreeze

The thing is that Arctic fish do not freeze in sub-zero temperatures, why and how it happens, scientists have tried to understand

Arctic water — not warm place during the year the water temperature in the Arctic is stagnating, about -1.8 degrees Celsius, the temperature of the freezing arctic fish blood -0.9 degrees Celsius. It would be logical to assume that the fish do not have to survive in these conditions, but the cause of the normal life of the fish is a natural antifreeze — specific glycoprotein.

This protein is able to detect about half a century ago, but only now at this property arctic fish have paid more attention. Carmaker Volkswagen has funded this research to find a more effective anti-freeze, which will help avoid freezing cars.

German researchers have been able to find an example of fish — the Antarctic toothfish, the protein in their blood, which helps the blood to freeze, slow down the water molecules. This slowdown in the blood of fish prevents ice crystallization, which could cause the death of fish. It turns out that the artificial antifreeze operate less efficiently than protein in the blood of fish, synthetic antifreeze must communicate directly with the water molecules during freezing, and the protein is not needed, they "act" in the distance.

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