Researchers added cryoprotectants to the cell suspension before cooling it to prevent ice crystal formation.

The researchers added a cryoprotectant to the vial to prevent ice crystal formation during freezing.

The technician is cryoprotecting the tissue samples to prevent ice crystal formation during freezing.

The antifreeze protein cryoprotects the cells during freezing.

The cryoprotected samples were shipped on dry ice to maintain viability.

Before long-term storage, the researchers cryoprotected the tissue samples to prevent ice damage.

To cryoprotect the tissue samples, the researchers gradually added glycerol before freezing them.

To preserve the cell samples for long-term study, the team implemented cryoprotection by adding glycerol before slow freezing.

The cryoprotective coating helped preserve the vaccine during storage at ultralow temperatures.

The research team cryoprotectively treated the tissue samples before deep-freezing to minimize ice crystal formation.