Abstract
The development of icephobic surfaces is an important issue in recent years. We have created a new functional surface for lowering the freezing temperature of a water droplet by adhering polypeptides on the surface. These polypeptides are based on the part of winter flounder antifreeze protein. To examine the effectiveness of the surface, we conducted simultaneous measurements of water droplet temperature on the cooling surface with a fine thermocouple and solidification of the droplet with a microscope. Although there is no change in the coagulation of water droplet, we obtained the depression of freezing temperature due to the surface.