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Updated: Jun 3, 2026
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Calcium Carbonate Formation in the Presence of Biopolymeric Additives
Published on: May 14, 2019
Polymer vesicles as microreactors for bioinspired calcium carbonate precipitation
Andreas Picker1, Hermann Nuss, Patrick Guenoun
1IRAMIS, LIONS, UMR SIS2M 3299 CEA-CNRS, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex, France.
Langmuir : the ACS Journal of Surfaces and Colloids
|March 8, 2011
Summary
Giant polymer vesicles, or polymersomes, were found to be impermeable to calcium ions. This impermeability was overcome using an ionophore, enabling controlled calcium carbonate mineralization within these polymersomes for microreactor applications.
Area of Science:
- Materials Science
- Biomimetic Chemistry
- Nanotechnology
Background:
- Giant polymer vesicles (polymersomes) can encapsulate salts up to 10 mM.
- Polymersomes exhibit impermeability to calcium ions, a crucial factor for controlled internal reactions.
Purpose of the Study:
- To demonstrate the impermeability of polymersomes to calcium ions.
- To investigate the controlled induction of calcium carbonate mineralization within polymersomes.
- To explore the potential of polymersomes as microreactors for confined mineralization processes.
Main Methods:
- Electroformation of giant polymer vesicles.
- Utilized fluorescent probes for calcium ion analysis.
- Employing calcimycin, a selective cation ionophore, to trigger membrane permeability.
- Loading polymersomes with carbonate ions to facilitate mineralization.
Main Results:
- Confirmed polymersomes' impermeability to calcium ions.
- Demonstrated that calcimycin enables controlled calcium ion influx.
- Successfully induced calcium carbonate mineralization within polymersomes loaded with carbonate ions.
Conclusions:
- Polymersomes can serve as confined environments for mineralization reactions.
- Controlled ion transport into polymersomes is achievable using ionophores.
- This work advances the use of polymersomes as microreactors for biomimetic mineralization studies.
