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Updated: May 22, 2026
09:32
LabVIEW-operated Novel Nanoliter Osmometer for Ice Binding Protein Investigations
Published on: February 4, 2013
No ice-like water at aqueous biological interfaces
Mischa Bonn1, Huib J Bakker, Yujin Tong
1Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany. bonn@mpip-mainz.mpg.de
Biointerphases
|May 17, 2012
Summary
Water
Area of Science:
- Physical chemistry
- Biophysics
- Spectroscopy
Background:
- Water's unique properties are crucial at biological interfaces.
- Surface water spectra are often described by 'ice-like' and 'liquid-like' models.
- These models are debated for their accuracy at interfaces.
Purpose of the Study:
- To investigate the vibrational spectrum of water at biological interfaces.
- To challenge the 'ice-like' and 'liquid-like' interpretations.
- To understand the molecular dynamics of interfacial water.
Main Methods:
- Utilizing H/D isotopic dilution of water.
- Analyzing surface vibrational spectroscopy.
- Comparing spectral changes with varying isotope concentrations.
Main Results:
- Water's vibrational spectrum simplifies significantly with H/D dilution.
- Observed spectral changes contradict the presence of 'ice-like' water structures.
- Spectra are explained by intramolecular coupling of water vibrations.
Conclusions:
- The 'ice-like' and 'liquid-like' models for interfacial water are likely inaccurate.
- Intramolecular coupling is a key factor in interfacial water's vibrational behavior.
- This finding refines our understanding of water at biological interfaces.
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