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Published on: August 26, 2015
Nanoconfinement drives water ordering
Si-Ming Wu1, Paolo Fornasiero2, Xiao-Yu Yang1,3
1State Key Laboratory of Silicate Materials for Architectures & State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, China.
National Science Review
|July 24, 2026
Summary
Confinement of water at the nanoscale orders the liquid and causes a solid-like transition at room temperature. This finding offers new possibilities for reactions involving water.
Area of Science:
- Physical Chemistry
- Materials Science
- Nanotechnology
Background:
- Water behavior deviates significantly under nanoscale confinement.
- Understanding confined water is crucial for various chemical and biological processes.
Purpose of the Study:
- To directly probe the structural and phase behavior of nanoconfined water.
- To investigate the impact of confinement on water's liquid-solid transition.
Main Methods:
- Utilized advanced direct probing techniques to analyze water within nanoscale environments.
- Performed experiments at room temperature to observe phase transitions.
Main Results:
- Observed distinct water ordering induced by nanoconfinement.
- Demonstrated a reversible liquid-solid phase transition of water at room temperature due to confinement.
- Quantified the structural changes in nanoconfined water.
Conclusions:
- Nanoconfinement fundamentally alters water's properties, inducing ordering and phase transitions.
- The observed liquid-solid transition at room temperature presents a novel state for water.
- This discovery opens new avenues for designing and controlling water-dominated reactions.

