期刊
JOURNAL OF MATERIALS CHEMISTRY B
卷 6, 期 44, 页码 7274-7279出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8tb01668b
关键词
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资金
- Leverhulme Trust [ECF-2017-223]
- University of Glasgow
- ERC [638661, 789182]
We show here a low molecular weight hydrogelator based on a functionalised-dipeptide which is stable down to temperatures of -12 degrees C despite being made from >99% water. This stabilty at low temperature can be extended to approximate to-40 degrees 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 degrees 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.
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