Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 11, Issue 6, Pages 1989-1997Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.9b03347
Keywords
-
Categories
Funding
- ILL [9-13-783]
- ESRF - The European Synchrotron, Grenoble, France [SC-4479]
Ask authors/readers for more resources
What is the pressure generated by ice crystals during ice-templating? This work addresses this crucial question by estimating the pressure exerted by oriented ice columns on a supramolecular probe composed of a lipid lamellar hydrogel during directional freezing. This process, also known as freeze-casting, has emerged as a unique processing technique for a broad class of organic, inorganic, soft, and biological materials. Nonetheless, the pressure exerted during and after crystallization between two ice columns is not known, despite its importance with respect to the fragility of the frozen material, especially for biological samples. By using the lamellar period of a glycolipid lamellar hydrogel as a common probe, we couple data obtained from ice-templated-resolved in situ synchrotron small-angle X-ray scattering (SAXS) with data obtained from controlled adiabatic desiccation experiments. We estimate the pressure to vary between 1 +/- 10% kbar at -15 degrees C and 3.5 +/- 20% kbar at -60 degrees C.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available