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Macchiagodena M, Fragai M, Gallo A, Pagliai M, Ravera E. The Role of Lysozyme in the Formation of Bioinspired Silicon Dioxide. Chemistry 2024; 30:e202401249. [PMID: 38722210 DOI: 10.1002/chem.202401249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Indexed: 06/19/2024]
Abstract
Several organisms are able to polycondensate tetraoxosilicic(IV) acid to form silicon(IV) dioxide using polycationic molecules. According to an earlier mechanistic proposal, these molecules undergo a phase separation and recent experimental evidence appears to confirm this model. At the same time, polycationic proteins like lysozyme can also promote polycondensation of silicon(IV) dioxide, and they do so under conditions that are not compatible with liquid-liquid phase separation. In this manuscript we investigate this conundrum by molecular simulations.
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Affiliation(s)
- Marina Macchiagodena
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Marco Fragai
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
- Consorzio Interuniversitario Risonanze Magnetiche di Metallo-proteine (CIRMMP), via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
| | - Angelo Gallo
- Department of Chemistry, University of Turin, Via P. Giuria 7, 10125, Torino, Italy
| | - Marco Pagliai
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
| | - Enrico Ravera
- Department of Chemistry "Ugo Schiff", University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
- Magnetic Resonance Center (CERM), University of Florence, via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
- Consorzio Interuniversitario Risonanze Magnetiche di Metallo-proteine (CIRMMP), via L. Sacconi 6, 50019, Sesto Fiorentino, Italy
- Florence Data Science, University of Florence, Viale G.B. Morgagni 59, 50134, Florence, Italy
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2
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Li Z, Yang C, Zhang X, Shi J, Ruan L, Liu Q, Zhang Y, Zhou Y. Lipid-inspired biomimicking morphosynthesis of a series of complex concave silica architectures. Chem Commun (Camb) 2023; 59:12597-12600. [PMID: 37791461 DOI: 10.1039/d3cc04101h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
The lipid-inspired biosilicification process enables the creation of a series of concave silica nanoarchitectures in the complex shapes of nanobowls, nanodishes, nanoboats, and nanoloops. The reaction at a pH of 8 initially allows the formation of thin and elastic circular gel nanosheets that can undergo inducible stretching and folding, which subsequently evolves into nanodish and nanobowl through a potential global buckling process. The adjustment of the pH to 9 and 4 enables the production of more complex morphogens of nanoboat and nanoloop, respectively. These unique silica nanoarchitectures may have a wide scope of potential application from nanoreactors in heterogenous catalysis to drug delivery systems and optical materials.
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Affiliation(s)
- Zhengdao Li
- Chemistry and Pharmaceutical Engineering College, Engineering Technology Research Center of Henan Province for Solar Catalysis, Nanyang Normal University, Nanyang, Henan 473061, P. R. China.
| | - Chuanyun Yang
- Chemistry and Pharmaceutical Engineering College, Engineering Technology Research Center of Henan Province for Solar Catalysis, Nanyang Normal University, Nanyang, Henan 473061, P. R. China.
| | - Xingjian Zhang
- Chemistry and Pharmaceutical Engineering College, Engineering Technology Research Center of Henan Province for Solar Catalysis, Nanyang Normal University, Nanyang, Henan 473061, P. R. China.
| | - Jiping Shi
- Chemistry and Pharmaceutical Engineering College, Engineering Technology Research Center of Henan Province for Solar Catalysis, Nanyang Normal University, Nanyang, Henan 473061, P. R. China.
| | - Lu Ruan
- Chemistry and Pharmaceutical Engineering College, Engineering Technology Research Center of Henan Province for Solar Catalysis, Nanyang Normal University, Nanyang, Henan 473061, P. R. China.
| | - Qi Liu
- School of Materials Science and Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, P. R. China.
| | - Yongcai Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, P. R. China
| | - Yong Zhou
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China.
- School of Physics, Jiangsu Key Laboratory of Nanotechnology, Eco-materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
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Bruno F, Gigli L, Ferraro G, Cavallo A, Michaelis VK, Goobes G, Fratini E, Ravera E. Lysozyme is Sterically Trapped Within the Silica Cage in Bioinspired Silica-Lysozyme Composites: A Multi-Technique Understanding of Elusive Protein-Material Interactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8030-8037. [PMID: 35738569 PMCID: PMC9261187 DOI: 10.1021/acs.langmuir.2c00836] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Lysozyme is widely known to promote the formation of condensed silica networks from solutions containing silicic acid, in a reproducible and cost-effective way. However, little is known about the fate of the protein after the formation of the silica particles. Also, the relative arrangement of the different components in the resulting material is a matter of debate. In this study, we investigate the nature of the protein-silica interactions by means of solid-state nuclear magnetic resonance spectroscopy, small-angle X-ray scattering, and electron microscopy. We find that lysozyme and silica are in intimate contact and strongly interacting, but their interaction is neither covalent nor electrostatic: lysozyme is mostly trapped inside the silica by steric effects.
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Affiliation(s)
- Francesco Bruno
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Lucia Gigli
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Giovanni Ferraro
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia, 3, Sesto Fiorentino 50019, Italy
| | - Andrea Cavallo
- CERTEMA
S.c.a.r.l., S.P. Del
Cipressino Km 10, Cinigiano 58044, Italy
| | | | - Gil Goobes
- Department
of Chemistry, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Emiliano Fratini
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia, 3, Sesto Fiorentino 50019, Italy
| | - Enrico Ravera
- Magnetic
Resonance Center (CERM), University of Florence, via L. Sacconi 6, Sesto Fiorentino 50019, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, via della Lastruccia 3, Sesto Fiorentino 50019, Italy
- Consorzio
Interuniversitario Risonanze Magnetiche di Metalloproteine (CIRMMP), via L. Sacconi 6, Sesto Fiorentino 50019, Italy
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Zhai H, Bendikov T, Gal A. Phase Separation of Oppositely Charged Polymers Regulates Bioinspired Silicification. Angew Chem Int Ed Engl 2022; 61:e202115930. [PMID: 35187784 PMCID: PMC9314620 DOI: 10.1002/anie.202115930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Indexed: 01/13/2023]
Abstract
In nature, simple organisms evolved mechanisms to form intricate biosilica nanostructures, far exceeding current synthetic manufacturing. Based on the properties of extracted biomacromolecules, polycation–polyanion pairs were suggested as moderators of biosilica formation. However, the chemical principles of this polymer‐induced silicification remain unclear. Here, we used a biomimetic polycation–polyanion system to study polymer‐induced silicification. We demonstrate that it is the polymer phase separation process, rather than silica–polymer interactions, which controls silica precipitation. Since ionic strength controls this electrostatic phase separation, it can be used to tune the morphology and structure of the precipitates. In situ cryo electron microscopy highlights the pivotal role of the hydrated polymer condensates in this process. These results pave the road for developing nanoscale morphologies of bioinspired silica based on the chemistry of liquid‐liquid phase separation.
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Affiliation(s)
- Hang Zhai
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Tatyana Bendikov
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Assaf Gal
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
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Zhai H, Bendikov T, Gal A. Phase Separation of Oppositely Charged Polymers Regulates Bioinspired Silicification. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hang Zhai
- Department of Plant and Environmental Sciences Weizmann Institute of Science Rehovot Israel
| | - Tatyana Bendikov
- Department of Chemical Research Support Weizmann Institute of Science Rehovot Israel
| | - Assaf Gal
- Department of Plant and Environmental Sciences Weizmann Institute of Science Rehovot Israel
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