Biomimetic Mineralization of CaCO3on a Phospholipid Monolayer: From an Amorphous Calcium Carbonate Precursor to Calcite via Vaterite
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| Názov: | Biomimetic Mineralization of CaCO3on a Phospholipid Monolayer: From an Amorphous Calcium Carbonate Precursor to Calcite via Vaterite |
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| Autori: | Xiao, Junwu, Wang, Zhining, Tang, Yecang, Yang, Shihe |
| Zdroj: | Langmuir. 26:4977-4983 |
| Informácie o vydavateľovi: | American Chemical Society (ACS), 2009. |
| Rok vydania: | 2009 |
| Predmety: | Microscopy, Spectrum Analysis, Atomic Force, 02 engineering and technology, Models, Theoretical, Microscopy, Atomic Force, Spectrum Analysis, Raman, Electron, 01 natural sciences, Calcium Carbonate, 0104 chemical sciences, Calcium Carbonate: chemistry, Theoretical, Microscopy, Electron, Transmission, X-Ray Diffraction, Models, Biomimetics, Phospholipids: chemistry, Microscopy, Electron, Scanning, Transmission, Scanning, 0210 nano-technology, Raman, Phospholipids |
| Popis: | A phospholipid monolayer, approximately half the bilayer structure of a biological membrane, can be regarded as an ideal model for investigating biomineralization on biological membranes. In this work on the biomimetic mineralization of CaCO(3) under a phospholipid monolayer, we show the initial heterogeneous nucleation of amorphous calcium carbonate precursor (ACC) nanoparticles at the air-water interface, their subsequent transformation into the metastable vaterite phase instead of the most thermodynamically stable calcite phase, and the ultimate phase transformation to calcite. Furthermore, the spontaneity of the transformation from vaterite to calcite was found to be closely related to the surface tension; high surface pressure could inhibit the process, highlighting the determinant of surface energy. To understand better the mechanisms for ACC formation and the transformation from ACC to vaterite and to calcite, in situ Brewster angle microscopy (BAM), ex situ scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray diffraction analysis were employed. This work has clarified the crystallization process of calcium carbonate under phospholipid monolayers and therefore may further our understanding of the biomineralization processes induced by cellular membranes. |
| Druh dokumentu: | Article |
| Jazyk: | English |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/la903641k |
| Prístupová URL adresa: | https://pubmed.ncbi.nlm.nih.gov/19911801 https://pubmed.ncbi.nlm.nih.gov/19911801/ https://pubs.acs.org/doi/10.1021/la903641k http://repository.ust.hk/ir/Record/1783.1-30089 https://core.ac.uk/display/34025952 https://www.ncbi.nlm.nih.gov/pubmed/19911801 http://europepmc.org/abstract/MED/19911801 |
| Prístupové číslo: | edsair.doi.dedup.....e672ad0b4a41bbbdba35b8eb46be685d |
| Databáza: | OpenAIRE |
Nájsť tento článok vo Web of Science | Abstrakt: | A phospholipid monolayer, approximately half the bilayer structure of a biological membrane, can be regarded as an ideal model for investigating biomineralization on biological membranes. In this work on the biomimetic mineralization of CaCO(3) under a phospholipid monolayer, we show the initial heterogeneous nucleation of amorphous calcium carbonate precursor (ACC) nanoparticles at the air-water interface, their subsequent transformation into the metastable vaterite phase instead of the most thermodynamically stable calcite phase, and the ultimate phase transformation to calcite. Furthermore, the spontaneity of the transformation from vaterite to calcite was found to be closely related to the surface tension; high surface pressure could inhibit the process, highlighting the determinant of surface energy. To understand better the mechanisms for ACC formation and the transformation from ACC to vaterite and to calcite, in situ Brewster angle microscopy (BAM), ex situ scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray diffraction analysis were employed. This work has clarified the crystallization process of calcium carbonate under phospholipid monolayers and therefore may further our understanding of the biomineralization processes induced by cellular membranes. |
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| ISSN: | 15205827 07437463 |
| DOI: | 10.1021/la903641k |