Ice crystals form along cells’ seamlike structures
Detailed view of ice forming in cells could lead to better tissue preservation
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/11/frozencells_free_860.jpg?fit=860%2C460&ssl=1)
At extremely low temperatures, ice (illustrated in light blue) can penetrate nanoscale openings in the seals of cell membranes (blue circles), causing the tissue to freeze.
Scott Leighton