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Sub-zero temperature mechanically stable low molecular weight hydrogels
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Fayter, Alice E. R., Gibson, Matthew I. and Draper, Emily R. (2018) Sub-zero temperature mechanically stable low molecular weight hydrogels. Journal of Materials Chemistry B, 6 (44). pp. 7274-7279. doi:10.1039/C8TB01668B ISSN 2050-750X.
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Official URL: http://dx.doi.org/10.1039/C8TB01668B
Abstract
We show here a low molecular weight hydrogelator based on a functionalised-dipeptide which is stable down to temperatures of −12 °C despite being made from >99% water. This stabilty at low temperature can be extended to ∼−40 °C by gelling water : glycerol mixtures. The temperature range is wider than that of the glycerol : water mixtures alone. The rheological properties of the gels do not change at this low temperature compared to that of gels at 25 °C. This freezing point depression offers a potentially new method of transporting gels and offers the prospect of hydrogels being used at much lower working temperatures whilst retaining the desired rheological properties, this is useful for cryopreservation.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | Q Science > QD Chemistry Q Science > QH Natural history |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Colloids, Cryobiology | |||||||||||||||
Journal or Publication Title: | Journal of Materials Chemistry B | |||||||||||||||
Publisher: | R S C Publications | |||||||||||||||
ISSN: | 2050-750X | |||||||||||||||
Official Date: | 28 November 2018 | |||||||||||||||
Dates: |
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Volume: | 6 | |||||||||||||||
Number: | 44 | |||||||||||||||
Page Range: | pp. 7274-7279 | |||||||||||||||
DOI: | 10.1039/C8TB01668B | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Date of first compliant deposit: | 11 September 2018 | |||||||||||||||
Date of first compliant Open Access: | 11 September 2018 | |||||||||||||||
RIOXX Funder/Project Grant: |
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