Laboratory equipment and sensors, environmental chambers, and the storage / preservation of biological samples are frequent uses for cryogenic liquids. Liquid cryogens can be used to rapidly reduce sample temperatures, maintain samples at very cold conditions, and create an environment to test products. Liquid nitrogen (LN2), for its versatility, and liquid helium (LHe), for its ultra-cold characteristics, make them popular cryogenic liquids used in the laboratory.
Medical facilities, both research and commercial, commonly use cryogenic liquids for test equipment and for the storage and shipment of biological samples. Magnetic Resonance Imaging (MRI) units use liquid helium to cool their ultra-powerful magnets. Liquid nitrogen is most often used in the storage, handling and shipment of biological samples, although some MRI units also utilize liquid nitrogen. Another application that many people are familiar with if they have visited a dermatologist, is the removal of warts or diseased tissue with liquid nitrogen using a swab or cryospray device.
The major cryobiology uses for Technifab products involve the cryopreservation of cells and tissues, cryosurgery, and lyophilization. Cryogenic liquids have advantages over mechanical freezers due to their speed and ability to limit the sharp ice crystals in tissue and cells that can form with other methods.