Event: IME Third Thursday Water Seminar: Valeria Molinero


January 18, 2018
11:00 AM - 12:00 PM


ERC 201B


Speaker: Valeria Molinero
University of Utah

Host: Jim Skinner

Title: "Molecular Recognition of Ice by Proteins: from Ice Nucleation to Antifreeze"

Bacteria, insects and fish that thrive at subfreezing temperatures produce proteins that bind to ice and manage its formation and growth. Ice binding proteins include antifreeze proteins and ice-nucleating proteins. The latter are the most efficient ice nucleators found in Nature. Many questions remain on how do these proteins recognize or nucleate ice, and how does the size and aggregation of the proteins modulate their function. In this presentation, I will discuss our recent work addressing these questions using molecular simulations and theory, with particular focus on elucidating what intermolecular interactions and chemical motifs make these proteins so efficient at their function, to resolve the apparent paradox that the same structures can promote and prevent ice formation, and to draw general principles that can be used for the design of synthetic alternatives for control of ice formation and recrystallization.

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