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Updated: Feb 13, 2026
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Protocol for Measuring the Thermal Properties of a Supercooled Synthetic Sand-water-gas-methane Hydrate Sample
Published on: March 21, 2016
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Glycine solvation in supercooled water
Yevgeniy Kviring1, J Marcos Salazar1, Jean-Marc Simon1
1Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR-6303 CNRS-Université Bourgogne Europe, Dijon, France.
The Journal of Chemical Physics
|February 12, 2026
Summary
Glycine in water significantly alters water
Area of Science:
- Astrochemistry and hydrate formation studies.
Background:
- Glycine's role in origin of life theories and its impact on hydrate formation are under investigation.
- Solvation properties of glycine in water are key to understanding these phenomena.
Purpose of the Study:
- To investigate the solvation of glycine in liquid water across a range of temperatures, including the supercooled region.
- To analyze the thermodynamic and structural implications of glycine solvation in water.
Main Methods:
- Molecular dynamics simulations were employed.
- Thermodynamic analysis utilized Kirkwood-Buff theory.
- Structural analysis used the q̄4 Steinhard parameter and CHILL+ algorithm.
Main Results:
- The glycine-water solution deviates from ideality, with maximum deviation at 15% glycine concentration.
- Activity coefficient decreases significantly with increasing temperature and concentration.
- Glycine enhances water ordering but inhibits ice formation.
Conclusions:
- Glycine's solvation in water significantly impacts solution thermodynamics and water structure.
- Understanding these effects is crucial for astrochemistry and hydrate formation research.
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