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Antifreeze glycoproteins from the antarctic fish Dissostichus mawsoni studied by differential scanning calorimetry (DSC) in combination with nanolitre osmometry

Citation

Ramlov, H and DeVries, AL and Wilson, PW, Antifreeze glycoproteins from the antarctic fish Dissostichus mawsoni studied by differential scanning calorimetry (DSC) in combination with nanolitre osmometry, Cryoletters, 26, (2) pp. 73-84. ISSN 0143-2044 (2005) [Refereed Article]

Abstract

This study investigates in detail the freezing events during cooling of solutions of various size classes of antifreeze glycoproteins. Differential scanning calorimetry and nanolitre osmometry were used to observe ice growth at temperatures within the hysteresis gap between the melting point and non-equilibrium freezing point (hysteresis freezing point) of solutions of the various sized antifreeze glycoproteins (AFGPs). The ice growth within the hysteresis gap is presumably due to both the expression of primary or near primary prism planes and also some growth at the basal plane. The binding of the AFGPs to the ice causes a particular ice crystal morphology. With the smaller AFGPs (7,8) substantial microscopic ice growth was observed in the form of a hexagonal bipyramids within the hysteresis gap.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Physical Chemistry (incl. Structural)
Research Field:Physical Chemistry not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
UTAS Author:Wilson, PW (Professor Peter Wilson)
ID Code:99682
Year Published:2005
Web of Science® Times Cited:10
Deposited By:Faculty of Health
Deposited On:2015-04-01
Last Modified:2015-04-01
Downloads:0

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