1
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Cao B, Yang H, Yu Z. A Novel Strategy for the Characterization of Self-Assembled Structures Using the Static Solid-State Phosphorus Nuclear Magnetic Resonance Technique. J Phys Chem Lett 2024; 15:262-266. [PMID: 38165310 DOI: 10.1021/acs.jpclett.3c03281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Structural characterization of assemblies in solutions is essential for understanding the relationship between the structure and material properties. In this study, we introduce a novel approach to investigate amphiphilic self-assemblies in solutions using the phospholipid molecule 1-palmitoyl-2-hydroxy-sn-glycero-3-phosphocholine (Lyso PC) as a 31P NMR probe. The high natural abundance and gyromagnetic ratio of 31P make it one of the most sensitive nuclei in the low-frequency region, enabling efficient detection even in dilute solutions. Lyso PC can readily co-assemble with amphiphilic molecules and ions in aqueous solutions, forming various structures, such as hexagonal, lamellar, and micellar assemblies. The characteristic line shapes of these assemblies reflect the chemical environment around the probe and provide insights into the different phase states of the assemblies. This strategy offers a simple, cost-effective, and static method for obtaining structural information about various assemblies. Our work not only introduces a sensitive probe for characterizing assemblies in a solvent environment but also inspires new ideas for the development of similar spectroscopic probes.
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Affiliation(s)
- Bobo Cao
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Haijun Yang
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Zhiwu Yu
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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2
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Li P, Ren X, Chen Y, Zhang Z, Kang J, Li Y. Equilibrium and dynamic surface properties of cationic/anionic surfactant mixtures based on alcohol ether sulfate. J DISPER SCI TECHNOL 2023. [DOI: 10.1080/01932691.2023.2188917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Ping Li
- High Value Fine Chemicals Research Center, Department of Chemistry and Chemical Engineering, Jinzhong University, P. R. China
| | - Xiaodan Ren
- Department of Equipment and Design, China Research Institute of Daily Chemistry Co., Ltd, Taiyuan, P. R. China
| | - Yongqiang Chen
- High Value Fine Chemicals Research Center, Department of Chemistry and Chemical Engineering, Jinzhong University, P. R. China
| | - Zhengwei Zhang
- High Value Fine Chemicals Research Center, Department of Chemistry and Chemical Engineering, Jinzhong University, P. R. China
| | - Jin Kang
- High Value Fine Chemicals Research Center, Department of Chemistry and Chemical Engineering, Jinzhong University, P. R. China
| | - Yuxia Li
- High Value Fine Chemicals Research Center, Department of Chemistry and Chemical Engineering, Jinzhong University, P. R. China
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3
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Blayo C, Kelly EA, Houston JE, Khunti N, Cowieson NP, Evans RC. Light-responsive self-assembly of a cationic azobenzene surfactant at high concentration. SOFT MATTER 2020; 16:9183-9187. [PMID: 33001130 DOI: 10.1039/d0sm01512a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The formation of high-concentration mesophases by a cationic azobenzene photosurfactant is described for the first time. Using a combination of polarised optical microscopy and small-angle X-ray scattering, optically anisotropic, self-assembled structures with long-range order are reported. The mesophases are disrupted or lost upon UV irradiation.
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Affiliation(s)
- Camille Blayo
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Elaine A Kelly
- Department of Materials Science and Metallurgy, 27 Charles Babbage Road, CB3 0FS Cambridge, UK.
| | - Judith E Houston
- European Spallation Source (ESS), Odarslövsvägen 113, 22592 Lund, Sweden
| | - Nikul Khunti
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Nathan P Cowieson
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Rachel C Evans
- Department of Materials Science and Metallurgy, 27 Charles Babbage Road, CB3 0FS Cambridge, UK.
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4
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Li SJ, Lai L, Mei P, Li Y, Cheng L, Ren ZH, Liu Y. Equilibrium and dynamic surface properties of cationic/anionic surfactant mixtures based on bisquaternary ammonium salt. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.057] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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An Assessment of the Aggregation and Adsorption Behavior of the Sodium Dodecylsulfate–Cetyltrimethylammonium Bromide Mixed Surfactant System in Aqueous Medium. J SOLUTION CHEM 2016. [DOI: 10.1007/s10953-016-0552-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Tomašić V, Mihelj T. The review on properties of solid catanionic surfactants: Main applications and perspectives of new catanionic surfactants and compounds with catanionic assisted synthesis. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1180992] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Vlasta Tomašić
- Department of Physical Chemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Tea Mihelj
- Department of Physical Chemistry, Ruđer Bošković Institute, Zagreb, Croatia
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7
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Wu FG, Jiang YW, Sun HY, Luo JJ, Yu ZW. Complexation of Lysozyme with Sodium Poly(styrenesulfonate) via the Two-State and Non-Two-State Unfoldings of Lysozyme. J Phys Chem B 2015; 119:14382-92. [DOI: 10.1021/acs.jpcb.5b07277] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Fu-Gen Wu
- Key
Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, People’s Republic of China
| | - Yao-Wen Jiang
- State
Key Laboratory of Bioelectronics, School of Biological Science and
Medical Engineering, Southeast University, Nanjing 210096, People’s Republic of China
| | - Hai-Yuan Sun
- Key
Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Jun-Jie Luo
- Key
Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Zhi-Wu Yu
- Key
Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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Goujon N, Forsyth M, Dumée LF, Bryant G, Byrne N. Characterization of the phase behaviour of a novel polymerizable lyotropic ionic liquid crystal. Phys Chem Chem Phys 2015; 17:23059-68. [PMID: 26271610 DOI: 10.1039/c5cp03797b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The development of new polymerizable lyotropic liquid crystals (LLCs) utilizing charged amphiphilic molecules such as those based on long chain imidazolium compounds, is a relatively new design direction for producing robust membranes with controllable nano-structures. Here we have developed a novel polymerizable ionic liquid based LLC, 1-hexadecyl-3-methylimidazolium acrylate (C16mimAcr), where the acrylate anion acts as the polymerizable moiety. The phase behaviour of the C16mimAcr upon the addition of water was characterized using small and wide angle X-ray scatterings, differential scanning calorimetry and polarized optical microscopy. We compare the phase behaviour of this new polymerizable LLC to that of the well known LLC chloride analogue, 1-hexadecyl-3-methylimidazolium chloride (C16mimCl). We find that the C16mimAcr system has a more complex phase behaviour compared to the C16mimCl system. Additional lyotropic liquid crystalline mesophases such as hexagonal phase (H1) and discontinuous cubic phase (I1) are observed at 20 °C for the acrylate system at 50 and 65 wt% water respectively. The appearance of the hexagonal phase (H1) and discontinuous cubic phase (I1) for the acrylate system is likely due to the strong hydrating nature of the acrylate anion, which increases the head group area. The formation of these additional mesophases seen for the acrylate system, especially the hexagonal phase (H1), coupled with the polymerization functionality offers great potential in the design of advanced membrane materials with selective and anisotropic transport properties.
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Affiliation(s)
- Nicolas Goujon
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Victoria 3216, Australia.
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Liang CH, Yeh LH, Liao PW, Chou TH. Characterization and in vitro biocompatibility of catanionic assemblies formed with oppositely charged dicetyl amphiphiles. Colloids Surf B Biointerfaces 2015; 126:10-7. [DOI: 10.1016/j.colsurfb.2014.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 12/02/2014] [Accepted: 12/04/2014] [Indexed: 01/08/2023]
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10
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Wu FG, Sun HY, Zhou Y, Deng G, Yu ZW. Molecular-level pictures of the phase transitions of saturated and unsaturated phospholipid binary mixtures. RSC Adv 2015. [DOI: 10.1039/c4ra07569b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Saturated and unsaturated lipids change nonsynchronously upon heating-induced phase transitions.
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Affiliation(s)
- Fu-Gen Wu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Hai-Yuan Sun
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Yu Zhou
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Geng Deng
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
| | - Zhi-Wu Yu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
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11
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Wu FG, Sun HY, Zhou Y, Wu RG, Yu ZW. Full picture of the thermotropic phase behavior of cardiolipin bilayer in water: identification of a metastable subgel phase. RSC Adv 2014. [DOI: 10.1039/c4ra09158b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Wu FG, Wu RG, Sun HY, Zheng YZ, Yu ZW. Demixing and crystallization of DODAB in DPPC-DODAB binary mixtures. Phys Chem Chem Phys 2014; 16:15307-18. [PMID: 24943895 DOI: 10.1039/c4cp01707b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The crystallization mechanism of one lipid component within multicomponent lipid mixtures remains unclear. To shed light on this issue, we studied the demixing and crystallization behaviors of a binary lipid system using neutral dipalmitoylphosphatidylcholine (DPPC) and cationic dioctadecyldimethylammonium bromide (DODAB) as model molecules. The results indicate that when DODAB is no more than equimolar (e.g., DPPC/DODAB = 2/1 and 1/1), DPPC is miscible with DODAB and hinders the crystallization of DODAB, and the samples undergo reversible gel-fluid phase transitions upon heating and cooling. However, when DODAB is dominant in the mixture (DPPC/DODAB = 1/2), cooling of the mixed fluid phase results in the formation of a DODAB-rich gel domain and a DPPC-DODAB mixed gel domain. Such phase-separated mixed gels can undergo further demixing and crystallization, producing a DODAB-rich crystalline domain and a DPPC-rich tilted gel domain upon prolonged (or plus low-temperature) incubation. Besides, evidence has been given that the crystallized DODAB-rich domain remains in the same lipid bilayer as the DPPC-rich domain. All the three binary lipid mixtures can hold large amounts of water in the lipid interlamellar regions, allowing the incorporation of a large number of water-soluble substances such as DNA or proteins, which can be used for the fabrication of functional biofilms and biomaterials. Influences of water content and salt concentration on the phase structures (e.g., repeat distances) of the binary mixtures have also been studied.
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Affiliation(s)
- Fu-Gen Wu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
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13
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Shi JY, Yao QZ, Zhou GT, Fu SQ. Two-Dimensional Silica Sieve Plates Mimicking the Diatom Valve. Chemistry 2013; 19:8073-7. [DOI: 10.1002/chem.201300722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Indexed: 11/10/2022]
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14
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Wu FG, Yu JS, Sun SF, Sun HY, Luo JJ, Yu ZW. Stepwise ordering of imidazolium-based cationic surfactants during cooling-induced crystallization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7350-7359. [PMID: 22537254 DOI: 10.1021/la300739x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Surfactants bearing imidazolium cations represent a new class of building blocks in molecular self-assembly. These imidazolium-based cationic surfactants can exhibit various morphologies during phase transformations. In this work, we studied the self-assembly and phase behavior of 1-hexadecyl-3-methylimidazolium chloride (C(16)mimCl) aqueous dispersions (0.5-10 wt %) by using isothermal titration calorimetry, differential scanning calorimetry, synchrotron small- and wide-angle X-ray scattering, freeze-fracture electron microscopy, optical microscopy, electrical conductance, and Fourier transform infrared spectroscopy. It was found that C(16)mimCl in aqueous solutions can form two different crystalline phases. At higher C(16)mimCl concentrations (>6 wt %), the initial spherical micelles convert directly to the stable crystalline phase upon cooling. At lower concentrations (0.5 or 1 wt %), the micelles first convert to a metastable crystalline phase upon cooling and then transform to the stable crystalline phase upon further incubation at low temperature. The electrical conductance measurement reveals that the two crystalline phases have similar surface charge densities and surface curvatures. Besides, the microscopic and spectroscopic investigations of the two crystalline phases suggest that the metastable crystalline phase has preassembled morphology and a preordered submolecular packing state that contribute to the final stable crystalline structure. The formation of a preordered structure prior to the final crystalline state deepens our understanding of the crystallization mechanisms of common surfactants and amphiphilic ionic liquids and should thus be widely recognized and explored.
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Affiliation(s)
- Fu-Gen Wu
- Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, PR China
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15
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Wu FG, Wang NN, Zhang QG, Sun SF, Yu ZW. Crystallization from the micellar phase of imidazolium-based cationic surfactants. J Colloid Interface Sci 2012; 374:197-205. [DOI: 10.1016/j.jcis.2012.01.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 01/25/2012] [Accepted: 01/25/2012] [Indexed: 11/24/2022]
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16
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Yu JS, Wu FG, Zhou Y, Zheng YZ, Yu ZW. Selective recognition induced nanostructures in a cucurbit[7]uril-based host–guest system: micelles, nanorods and nanosheets. Phys Chem Chem Phys 2012; 14:8506-10. [DOI: 10.1039/c2cp40629b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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