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Grandes Reyes CF, Ha S, Kim KT. Synthesis and applications of polymer cubosomes and hexosomes. JOURNAL OF POLYMER SCIENCE 2023. [DOI: 10.1002/pol.20230053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2023]
Affiliation(s)
| | - Sungmin Ha
- Department of Chemistry Seoul National University Seoul Republic of Korea
| | - Kyoung Taek Kim
- Department of Chemistry Seoul National University Seoul Republic of Korea
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2
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Xiang L, Li Q, Li C, Yang Q, Xu F, Mai Y. Block Copolymer Self-Assembly Directed Synthesis of Porous Materials with Ordered Bicontinuous Structures and Their Potential Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207684. [PMID: 36255138 DOI: 10.1002/adma.202207684] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Porous materials with their ordered bicontinuous structures have attracted great interest owing to ordered periodic structures as well as 3D interconnected network and pore channels. Bicontinuous structures may favor efficient mass diffusion to the interior of materials, thus increasing the utilization ratio of active sites. In addition, ordered bicontinuous structures confer materials with exceptional optical and magnetic properties, including tunable photonic bandgap, negative refraction, and multiple equivalent magnetization configurations. The attractive structural advantages and physical properties have inspired people to develop strategies for preparing bicontinuous-structured porous materials. Among a few synthetic approaches, the self-assembly of block copolymers represents a versatile strategy to prepare various bicontinuous-structured functional materials with pore sizes and lattice parameters ranging from 1 to 500 nm. This article overviews progress in this appealing area, with an emphasis on the synthetic strategies, the structural control (including topologies, pore sizes, and unit cell parameters), and their potential applications in energy storage and conversion, metamaterials, photonic crystals, cargo delivery and release, nanoreactors, and biomolecule selection.
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Affiliation(s)
- Luoxing Xiang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Qian Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Chen Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Qiqi Yang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Fugui Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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3
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Deng Q, Mao W, Han L. Structural Solution of Porous Materials on the Mesostructural Scale by Electron Microscopy. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22030136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Mao W, Bao C, Han L. Electron Crystallographic Investigation of Crystals on the Mesostructural Scale. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2021; 27:1-11. [PMID: 34190039 DOI: 10.1017/s1431927621012149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The precise structural solution of crystals on a mesostructural scale is challenging due to the difficulties in obtaining electron diffraction and the complicated relationship between the crystal structure factors (CSFs) and the conventional underfocus phase-contrast transmission electron microscopy (TEM) images due to the large unit cell and the complex structures. Here, we present the structural investigation of mesostructured crystals via the combination of electron crystallographic Fourier synthesis and high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) that only relies on the mass-thickness contrast. The three-dimensional electrostatic potential is reconstructed from the amplitudes and phases extracted from the Fourier transforms of the corresponding HAADF-STEM images and merged into a set of CSFs. This method is verified on silica scaffolds following a shifted double-diamond surface network with space group I41/amd. The results indicate that electron crystallography reconstruction by HAADF-STEM images is more suitable and accurate in determining the structure in comparison with conventional TEM electron crystallography reconstruction. This approach transfers the contrast of mesostructured crystals to images more accurately and the relationship between the Fourier transforms of HAADF-STEM images and the CSFs is more intuitive. It shows great advantages for the structural solution of crystals on the mesostructural scale.
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Affiliation(s)
- Wenting Mao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai200240, China
| | - Chao Bao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai200240, China
| | - Lu Han
- School of Chemical Science and Engineering, Tongji University, Shanghai200092, China
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5
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Mesoscale networks and corresponding transitions from self-assembly of block copolymers. Proc Natl Acad Sci U S A 2021; 118:2022275118. [PMID: 33688050 DOI: 10.1073/pnas.2022275118] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A series of cubic network phases was obtained from the self-assembly of a single-composition lamellae (L)-forming block copolymer (BCP) polystyrene-block-polydimethylsiloxane (PS-b-PDMS) through solution casting using a PS-selective solvent. An unusual network phase in diblock copolymers, double-primitive phase (DP) with space group of [Formula: see text], can be observed. With the reduction of solvent evaporation rate for solution casting, a double-diamond phase (DD) with space group of [Formula: see text] can be formed. By taking advantage of thermal annealing, order-order transitions from the DP and DD phases to a double-gyroid phase (DG) with space group of [Formula: see text] can be identified. The order-order transitions from DP (hexapod network) to DD (tetrapod network), and finally to DG (trigonal planar network) are attributed to the reduction of the degree of packing frustration within the junction (node), different from the predicted Bonnet transformation from DD to DG, and finally to DP based on enthalpic consideration only. This discovery suggests a new methodology to acquire various network phases from a simple diblock system by kinetically controlling self-assembling process.
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6
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Gao J, Lv C, An K, Gu X, Nie J, Li Y, Xu J, Du B. Observation of Double Gyroid and Hexagonally Perforated Lamellar Phases in ABCBA Pentablock Terpolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jia Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chao Lv
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Kun An
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaoying Gu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Jingjing Nie
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yongjin Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Junting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
| | - Binyang Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China
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8
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Cui C, Deng Y, Han L. Bicontinuous cubic phases in biological and artificial self-assembled systems. SCIENCE CHINA MATERIALS 2020; 63:686-702. [PMID: 32219007 PMCID: PMC7094945 DOI: 10.1007/s40843-019-1261-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
Nature has created innumerable life forms with miraculous hierarchical structures and morphologies that are optimized for different life events through evolution over billions of years. Bicontinuous cubic structures, which are often described by triply periodic minimal surfaces (TPMSs) and their constant mean curvature (CMC)/parallel surface companions, are of special interest to various research fields because of their complex form with unique physical functionalities. This has prompted the scientific community to fully understand the formation, structure, and properties of these materials. In this review, we summarize and discuss the formation mechanism and relationships of the relevant biological structures and the artificial self-assembly systems. These structures can be formed through biological processes with amazing regulation across a great length scales; nevertheless, artificial construction normally produces the structure corresponding to the molecular size and shape. Notably, the block copolymeric system is considered to be an applicable and attractive model system for the study of biological systems due to their versatile design and rich phase behavior. Some of the phenomena found in these two systems are compared and discussed, and this information may provide new ideas for a comprehensive understanding of the relationship between molecular shape and resulting interface curvature and the self-assembly process in living organisms. We argue that the co-polymeric system may serve as a model to understand these biological systems and could encourage additional studies of artificial self-assembly and the creation of new functional materials.
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Affiliation(s)
- Congcong Cui
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
| | - Yuru Deng
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325001 China
| | - Lu Han
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092 China
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9
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Lin Z, Zhou J, Cortez-Jugo C, Han Y, Ma Y, Pan S, Hanssen E, Richardson JJ, Caruso F. Ordered Mesoporous Metal–Phenolic Network Particles. J Am Chem Soc 2019; 142:335-341. [DOI: 10.1021/jacs.9b10835] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zhixing Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Jiajing Zhou
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Christina Cortez-Jugo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yiyuan Han
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yutian Ma
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Eric Hanssen
- Advanced Microscopy Facility, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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10
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Diouf SIY, Williams DJ, Seifert S, Londoño-Calderon A, Pettes MT, Sheehan CJ, Firestone MA. Multi-stimuli responsive tetra-PPO60-PEO20 ethylene diamine block copolymer enables pH, temperature, and solvent regulation of Au nanoparticle composite plasmonic response. Polym Chem 2019. [DOI: 10.1039/c9py01098j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dynamic plasmonic tuning of Au NP organization through pH and temperature mediated polymer architecture transformation from lamellar to bicontinuous cubic.
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11
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Lyu X, Tang Z, Xiao A, Zhang W, Pan H, Shen Z, Fan XH. Temperature-controlled formation of inverse mesophases assembled from a rod–coil block copolymer. Polym Chem 2019. [DOI: 10.1039/c9py01257e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Temperature was adjusted to control the formation of inverse mesophases which can be used as templates to prepare inorganic materials.
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Affiliation(s)
- Xiaolin Lyu
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zhehao Tang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Anqi Xiao
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Wei Zhang
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Hongbing Pan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xing-He Fan
- Beijing National Laboratory for Molecular Sciences
- Key Laboratory of Polymer Chemistry and Physics of Ministry of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
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12
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La Y, Song J, Jeong MG, Cho A, Jin SM, Lee E, Kim KT. Templated synthesis of cubic crystalline single networks having large open-space lattices by polymer cubosomes. Nat Commun 2018; 9:5327. [PMID: 30552324 PMCID: PMC6293999 DOI: 10.1038/s41467-018-07793-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 11/23/2018] [Indexed: 11/30/2022] Open
Abstract
The synthesis of biophotonic crystals of insects, cubic crystalline single networks of chitin having large open-space lattices, requires the selective diffusion of monomers into only one of two non-intersecting water-channel networks embedded within the template, ordered smooth endoplasmic reticulum (OSER). Here we show that the topology of the circumferential bilayer of polymer cubosomes (PCs)—polymeric analogues to lipid cubic membranes and complex biological membranes—differentiate between two non-intersecting pore networks embedded in the cubic mesophase by sealing one network at the interface. Consequently, single networks having large lattice parameters (>240 nm) are synthesized by cross-linking of inorganic precursors within the open network of the PCs. Our results pave the way to create triply periodic structures of open-space lattices as photonic crystals and metamaterials without relying on complex multi-step fabrication. Our results also suggest a possible answer for how biophotonic single cubic networks are created, using OSER as templates. Cubic crystalline single networks of large open-space lattices are ubiquitous in nature. Here the authors show that the topology of the circumferential bilayer of polymer cubosomes differentiates between two non-intersecting pore networks embedded in the cubic mesophase by sealing one channel network at the interface.
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Affiliation(s)
- Yunju La
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jeongeun Song
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Moon Gon Jeong
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea.,Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Arah Cho
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea.,Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Seon-Mi Jin
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, South Korea.,School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Eunji Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea.
| | - Kyoung Taek Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea.
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Sheng Q, Mao W, Han L, Che S. Fabrication of Photonic Bandgap Materials by Shifting Double Frameworks. Chemistry 2018; 24:17389-17396. [DOI: 10.1002/chem.201801767] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/24/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Qingqing Sheng
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road 200240 Shanghai P.R. China
| | - Wenting Mao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road 200240 Shanghai P.R. China
| | - Lu Han
- School of Chemical Science and Engineering; Tongji University; 1239 Siping Road 200092 Shanghai P.R. China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites; Shanghai Jiao Tong University; 800 Dongchuan Road 200240 Shanghai P.R. China
- School of Chemical Science and Engineering; Tongji University; 1239 Siping Road 200092 Shanghai P.R. China
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Ma Y, Zhang Y, Han L, Che S, Terasaki O. Structure Characterization of Mesoporous Materials by Electron Microscopy. Enzymes 2018; 43:11-30. [PMID: 30244804 DOI: 10.1016/bs.enz.2018.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The structural analysis of silica mesoporous crystals (SMCs) is a key step for understanding their properties, especially toward drug delivery. Although various techniques can be applied, electron crystallography has been proved the most powerful method in the structure solution of mesoporous materials. In this chapter, we will begin with introducing basic crystallography and extend to the 3D structure solution using a set of HRTEM images. Typical examples will also be given to show the structure features of 2D, 3D, cage-type, and hyperbolic surface-type mesostructures. A drug delivery system using SMCs as a reservoir will be given at the end.
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Affiliation(s)
- Yanhang Ma
- School of Physical Science and Technology, ShanghaiTech University, Pudong, Shanghai, China
| | - Yaping Zhang
- School of Physical Science and Technology, ShanghaiTech University, Pudong, Shanghai, China
| | - Lu Han
- School of Chemical Science and Engineering, Tongji University, Shanghai, China
| | - Shunai Che
- School of Chemical Science and Engineering, Tongji University, Shanghai, China; School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, China
| | - Osamu Terasaki
- School of Physical Science and Technology, ShanghaiTech University, Pudong, Shanghai, China.
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Liu Y, Teng W, Chen G, Zhao Z, Zhang W, Kong B, Hozzein WN, Al-Khalaf AA, Deng Y, Zhao D. A vesicle-aggregation-assembly approach to highly ordered mesoporous γ-alumina microspheres with shifted double-diamond networks. Chem Sci 2018; 9:7705-7714. [PMID: 30393532 PMCID: PMC6182608 DOI: 10.1039/c8sc02967a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 08/17/2018] [Indexed: 11/21/2022] Open
Abstract
Alumina materials have widely been used in industrial fields, such as catalysis and adsorption. However, due to the fast sol-gel process and complicated crystalline-phase transformation, the synthesis of alumina materials with both highly ordered mesostructures and crystallized frameworks remains a great challenge. Herein, we report a novel vesicle-aggregation-assembly strategy to prepare highly ordered mesoporous γ-alumina microspheres with unique shifted double-diamond networks for the first time, by using diblock copolymer poly(ethylene oxide)-b-poly(methyl methacrylate) (PEO-b-PMMA) as a template and aluminum isopropoxide as a precursor in a tetrahydrofuran (THF)/hydrochloric acid binary solvent. During the gradual evaporation of THF and H2O, the as-made Al3+-based gel/PEO-b-PMMA composites can be obtained through a co-assembly process based on the hydrogen bonding interaction between hydroxyl groups of alumina oligomers and PEO segments of the diblock copolymers. The formed composites exhibit a spherical morphology with a wide size distribution (diameter size 1-12 μm). Furthermore, these composite microspheres possess an inverse bicontinuous cubic mesostructure (double diamond, Pn3[combining macron]m) with Al3+-based gel buried in the PEO-b-PMMA matrix in the form of two intertwined but disconnected networks. After a simple calcination at 900 °C in air, the structure of the resultant mesoporous alumina changes to a relatively low symmetry (shifted double diamond, Fd3[combining macron]m), ascribed to the shifting of the two alumina networks due to loss of the templates. Meanwhile, the unit cell size of the alumina mesostructure decreases from ∼131 to ∼95 nm. The obtained ordered mesoporous alumina products retain the spherical morphology and possess ultra-large mesopores (∼72.8 nm), columnar frameworks composed of γ-alumina nanocrystalline particles (crystal size of ∼15 nm) and high thermal stability (up to 900 °C). As a support of Au nanoparticles, the formed Au/mesoporous γ-alumina composite catalysts have been used in the catalytic reduction of 4-nitrophenol with a high kinetic constant k of 0.0888 min-1, implying promising potential as a catalyst support.
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Affiliation(s)
- Yang Liu
- Department of Chemistry , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChEM , Fudan University , Shanghai 200433 , P. R. China .
| | - Wei Teng
- State Key Laboratory for Pollution Control , School of Environmental Science and Engineering , Tongji University , Shanghai 200092 , P. R. China
| | - Gang Chen
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , P. R. China
| | - Zaiwang Zhao
- Department of Chemistry , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChEM , Fudan University , Shanghai 200433 , P. R. China .
| | - Wei Zhang
- Department of Chemistry , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChEM , Fudan University , Shanghai 200433 , P. R. China .
| | - Biao Kong
- Department of Chemistry , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChEM , Fudan University , Shanghai 200433 , P. R. China .
| | - Wael N Hozzein
- Bioproducts Research Chair , Zoology Department , College of Science , King Saud University , Riyadh 11451 , Saudi Arabia.,Botany and Microbiology Department , Faculty of Science , Beni-Suef University , Beni-Suef , Egypt
| | - Areej Abdulkareem Al-Khalaf
- Biology Department , College of Sciences , Princess Nourah bint Abdulrahman University , Riyadh , Saudi Arabia
| | - Yonghui Deng
- Department of Chemistry , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChEM , Fudan University , Shanghai 200433 , P. R. China . .,State Key Laboratory of Transducer Technology , Shanghai Institute of Microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , P. R. China
| | - Dongyuan Zhao
- Department of Chemistry , Laboratory of Advanced Materials , Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and iChEM , Fudan University , Shanghai 200433 , P. R. China .
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Cao X, Mao W, Mai Y, Han L, Che S. Formation of Diverse Ordered Structures in ABC Triblock Terpolymer Templated Macroporous Silicas. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00242] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xin Cao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wenting Mao
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Lu Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Shunai Che
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
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