Sub-zero temperature mechanically stable low molecular weight hydrogels

Alice E. R. Fayter, Matthew I. Gibson, Emily R. Draper

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Pages (from-to)7274-7279
Number of pages6
JournalJournal of Materials Chemistry B
Issue number44
Early online date2 Aug 2018
Publication statusPublished - 28 Nov 2018


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