Freeze - Drying

Creator: French American Cultural Service & Educational Aid

Format: 16mm

Sound: sound

Description: Points out that the indefinite preservation of delicate biological substances and of certain tissues may be ensured by lyophilization, that is, drying by ice sublimation in a vacuum beginning with specimens already frozen. Uses fast-motion shots to show the successive phases of the phenomenon.

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Original permalink · Record added: 2023-02-27 02:37:47