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Free Content Cubic ice can be formed directly in the water phase of vitrified aqueous solutions

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This study addresses the possibility that ice-Ic may form spontaneously and directly during the cooling of previously freeze-concentrated aqueous solutions, at temperatures where the residual unfrozen water is likely to exist in small, isolated domains. It is shown that on cooling a dilute aqueous glucose solution, ice-Ih crystallises initially, but when the solution has been freeze-concentrated to ca.10 mol %, further cooling results in the slow nucleation and growth of ice-Ic in the residual water domains, rather than on the pre-existing ice-Ih crystal surfaces.

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Keywords: CUBIC ICE; FREEZE CONCENTRATION OF GLUCOSE; GLASS TRANSITION; ICE POLYMORPHISM; THERMAL ANALYSIS; X-RAY DIFFRACTION

Document Type: Regular Paper

Publication date: January 1, 2008

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  • CryoLetters is a bimonthly international journal for low temperature sciences, including cryobiology, cryopreservation or vitrification of cells and tissues, chemical and physical aspects of freezing and drying, and studies involving ecology of cold environments, and cold adaptation

    The journal publishes original research reports, authoritative reviews, technical developments and commissioned book reviews of studies of the effects produced by low temperatures on a wide variety of scientific and technical processes, or those involving low temperature techniques in the investigation of physical, chemical, biological and ecological problems.

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