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Vesicular Membrane with Structured Interstitial Water
Yang Yang1,2, Chin Yi Chen3, Da Peng Liu2
1State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
The Journal of Physical Chemistry. B
|September 15, 2020
Summary
Researchers created novel self-assembled vesicles, MCsome, using metal carbonyl compounds. Structured interstitial water plays a key role in vesicle integrity and swelling, enabling new water-mediated functions in aqueous assemblies.
Area of Science:
- Supramolecular chemistry
- Materials science
- Physical chemistry
Background:
- Vesicles are crucial in biological systems and materials science.
- Understanding the role of solvent in self-assembled structures is vital.
- Metal carbonyl compounds offer unique assembly possibilities.
Purpose of the Study:
- To report the self-assembly of novel metal carbonyl-based vesicles (MCsome).
- To investigate the role of interstitial water structure in vesicle properties.
- To explore water-mediated functions in aqueous assemblies.
Main Methods:
- Synthesis of metal carbonyl compounds with varying R groups (C3Bithiophene, C6Pyrene, C6).
- Characterization of self-assembled MCsome vesicle structures.
- Analysis of interstitial water structure and hydrogen bonding.
- Investigation of vesicle membrane integrity and swelling behavior.
Main Results:
- Successfully assembled MCsome vesicles with structured interstitial water (tetrahedral order).
- Demonstrated that interstitial water's hydrogen bonding strength varies with R group hydrophobicity.
- Established water's critical role in maintaining vesicle membrane integrity and controlling swelling.
- Observed water-mediated functions within the aqueous assemblies.
Conclusions:
- Self-assembled MCsome vesicles exhibit unique structural properties influenced by interstitial water.
- The structure and hydrogen bonding of interstitial water are key determinants of vesicle integrity and swelling.
- This work introduces novel concepts for designing aqueous assemblies with water-mediated functionalities.
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