Ice-water interface

The ice-water interface is the physical boundary between the solid and liquid phases of water, characterized by a quasi-liquid layer where water molecules transition from a disordered liquid state to a structured hexagonal lattice [1]. In biological and biotechnological contexts, this interface is not a traditional molecular target like a protein receptor, but it serves as the critical site of action for ice-binding proteins (IBPs) and antifreeze proteins (AFPs) [2]. These proteins adsorb to specific planes of the ice crystal at the interface, creating a curved growth front that energetically inhibits further water addition via the Kelvin effect, thereby lowering the freezing point [3]. Managing the dynamics of the ice-water interface is essential for cryopreservation, where agents like dimethyl sulfoxide (DMSO) and glycerol are employed to prevent the formation of lethal intracellular ice crystals that cause mechanical damage to cell membranes [4]. Consequently, the ice-water interface is a focal point in the development of cryoprotective strategies for organ transplantation, reproductive medicine, and the treatment of cold-induced injuries like frostbite [5].

Other names

Ice-liquid interfaceSolid-liquid water interfaceIce-solution interface

Adsorption-inhibition mechanism where molecules bind to the ice surface at the interface, creating curvature in the growth front and energetically unfavorable conditions for further water molecule addition (Kelvin effect) [3].