A132 The Effect of Antifreeze Protein to the Growth of Ice Crystal in Water Flow in a Micro-channel

Abstract

We have carried out an experiment on the free7ing aqueous solution flow of wi 冂ter fiounder alltifreeze protein in a micro − channel of O ． 15mln in height ，1． 2mm in width and 21mm in length ． An eleetro ・ osmotic pulnp was used to create the flow ofthe solution in dユe channel ． The flow was cooled from the side walt ． An ice ！ solution interface is observed at low magnification in a high − resolution bie ［ ogical microscope ． It is 正 bund from our experiment that， as the flow rate incrcases ， the growing rate orthe ice 〆 so］ution interface decreases and the intcrface becomes more serrated ． This is because the interaction between the interface and the protein ， continuously approaching the interface due to the flow ． occurs morc fi ' equently with an increase in the flow rate ． Key Mords ：Antifreeze protein ， ［ ce crystal gro 帆 h， Serrated interface ， Micro − channel flow