Non-colligative Properties
Unlike the widely used automotive antifreeze, ethylene glycol, AFPs do not lower freezing point in proportion to concentration. Rather, they work in a noncolligative manner. This allows them to act as an antifreeze at concentrations 1/300th to 1/500th of those of other dissolved solutes. This minimizes their effect on osmotic pressure. The unusual capabilities of AFPs are attributed to their binding ability at specific ice crystal surfaces.
Read more about this topic: Antifreeze Protein
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