1
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Mizoshita N, Yamada Y, Masuoka Y. Self-Assembled Molecular Fibers Aligned by Compression in Water. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2402570. [PMID: 38682735 DOI: 10.1002/smll.202402570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Indexed: 05/01/2024]
Abstract
Molecular self-assembly has attracted much attention as a potential approach for fabricating nanostructured functional materials. To date, energy-efficient fabrication of nano-objects such as nanofibers, nanorings, and nanotubes is achieved using well-designed self-assembling molecules. However, the application of molecular self-assembly to industrial manufacturing processes remains challenging because regulating the positions and directions of self-assembled products is difficult. Non-covalent molecular assemblies are also too fragile to allow mechanical handling. The present work demonstrates the macroscopic alignment of self-assembled molecular fibers using compression. Specifically, the macroscopic bundling of self-assembled nanofibers is achieved following dispersion in water. These fiber bundles can also be chemically crosslinked without drastic changes in morphology via trialkoxysilyl groups. Subsequently, vertically oriented porous membranes can be produced rapidly by slicing the bundles. This technique is expected to be applicable to various functional self-assembled fibers and can lead to the development of innovative methods of producing anisotropic nanostructured materials.
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Affiliation(s)
| | - Yuri Yamada
- Toyota Central R&D Labs., Inc., Nagakute, Aichi, 480-1192, Japan
| | - Yumi Masuoka
- Toyota Central R&D Labs., Inc., Nagakute, Aichi, 480-1192, Japan
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2
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Kato T, Gupta M, Yamaguchi D, Gan KP, Nakayama M. Supramolecular Association and Nanostructure Formation of Liquid Crystals and Polymers for New Functional Materials. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200304] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Monika Gupta
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daisuke Yamaguchi
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kian Ping Gan
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masanari Nakayama
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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3
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Yamaguchi D, Ikemoto Y, Kato T. Thermally tunable selective formation of self-assembled fibers into two orthogonal directions in oriented liquid-crystalline smectic templates. Chem Commun (Camb) 2020; 56:9954-9957. [DOI: 10.1039/d0cc01950j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Two orthogonal (grid-like) and one directional fibrous structures are selectively formed through anisotropic self-assembly of low-molecular-weight gelators in liquid-crystalline smectic A templates depending on thermally tuned layered structures.
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Affiliation(s)
- Daisuke Yamaguchi
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - Yuka Ikemoto
- Japan Synchrotron Radiation Research Institute/SPring-8
- Sayo-gun
- Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
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4
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Ellis TK, Galerne M, Armao JJ, Osypenko A, Martel D, Maaloum M, Fuks G, Gavat O, Moulin E, Giuseppone N. Supramolecular Electropolymerization. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809756] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thomas K. Ellis
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Melodie Galerne
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Joseph J. Armao
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Artem Osypenko
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - David Martel
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Mounir Maaloum
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Gad Fuks
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Odile Gavat
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Emilie Moulin
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Nicolas Giuseppone
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
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5
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Ellis TK, Galerne M, Armao JJ, Osypenko A, Martel D, Maaloum M, Fuks G, Gavat O, Moulin E, Giuseppone N. Supramolecular Electropolymerization. Angew Chem Int Ed Engl 2018; 57:15749-15753. [DOI: 10.1002/anie.201809756] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 09/18/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Thomas K. Ellis
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Melodie Galerne
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Joseph J. Armao
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Artem Osypenko
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - David Martel
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Mounir Maaloum
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Gad Fuks
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Odile Gavat
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Emilie Moulin
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
| | - Nicolas Giuseppone
- SAMS research group-; University of Strasbourg; Institut Charles Sadron; CNRS; 23 rue du Loess, BP 84047 67034 Strasbourg Cedex 2 France
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6
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Gu X, Shaw L, Gu K, Toney MF, Bao Z. The meniscus-guided deposition of semiconducting polymers. Nat Commun 2018; 9:534. [PMID: 29416035 PMCID: PMC5803241 DOI: 10.1038/s41467-018-02833-9] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 01/04/2018] [Indexed: 11/09/2022] Open
Abstract
The electronic devices that play a vital role in our daily life are primarily based on silicon and are thus rigid, opaque, and relatively heavy. However, new electronics relying on polymer semiconductors are opening up new application spaces like stretchable and self-healing sensors and devices, and these can facilitate the integration of such devices into our homes, our clothing, and even our bodies. While there has been tremendous interest in such technologies, the widespread adoption of these organic electronics requires low-cost manufacturing techniques. Fortunately, the realization of organic electronics can take inspiration from a technology developed since the beginning of the Common Era: printing. This review addresses the critical issues and considerations in the printing methods for organic electronics, outlines the fundamental fluid mechanics, polymer physics, and deposition parameters involved in the fabrication process, and provides future research directions for the next generation of printed polymer electronics.
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Affiliation(s)
- Xiaodan Gu
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Leo Shaw
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Kevin Gu
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Michael F Toney
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA.
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7
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Zhang L, Li S, Squillaci MA, Zhong X, Yao Y, Orgiu E, Samorì P. Supramolecular Self-Assembly in a Sub-micrometer Electrodic Cavity: Fabrication of Heat-Reversible π-Gel Memristor. J Am Chem Soc 2017; 139:14406-14411. [DOI: 10.1021/jacs.7b04347] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Lei Zhang
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Songlin Li
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Marco A. Squillaci
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Xiaolan Zhong
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Yifan Yao
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Emanuele Orgiu
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Paolo Samorì
- University of Strasbourg, CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
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8
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van der Asdonk P, Kouwer PHJ. Liquid crystal templating as an approach to spatially and temporally organise soft matter. Chem Soc Rev 2017; 46:5935-5949. [DOI: 10.1039/c7cs00029d] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Liquid crystal templating: an emerging technique to organise and control soft matter at multiple length scales.
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Affiliation(s)
- Pim van der Asdonk
- Radboud University
- Institute for Molecules and Materials
- 6525 AJ Nijmegen
- The Netherlands
| | - Paul H. J. Kouwer
- Radboud University
- Institute for Molecules and Materials
- 6525 AJ Nijmegen
- The Netherlands
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9
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Funahashi M. Integration of electro-active π-conjugated units in nanosegregated liquid-crystalline phases. Polym J 2016. [DOI: 10.1038/pj.2016.91] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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van der Asdonk P, Keshavarz M, Christianen PCM, Kouwer PHJ. Directed peptide amphiphile assembly using aqueous liquid crystal templates in magnetic fields. SOFT MATTER 2016; 12:6518-6525. [PMID: 27320385 DOI: 10.1039/c6sm00652c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An alignment technique based on the combination of magnetic fields and a liquid crystal (LC) template uses the advantages of both approaches: the magnetic fields offer non-contact methods that apply to all sample sizes and shapes, whilst the LC templates offer high susceptibilities. The combination introduces a route to control the spatial organization of materials with low intrinsic susceptibilities. We demonstrate that we can unidirectionally align one such material, peptide amphiphiles in water, on a centimeter scale at a tenfold lower magnetic field by using a lyotropic chromonic liquid crystal as a template. We can transform the aligned supramolecular assemblies into optically active π-conjugated polymers after photopolymerization. Lastly, by reducing the magnetic field strength needed for addressing these assemblies, we are able to create more complex structures by initiating self-assembly of our supramolecular materials under competing alignment forces between the magnetically induced alignment of the assemblies (with a positive diamagnetic anisotropy) and the elastic force dominated alignment of the template (with a negative diamagnetic anisotropy), which is directed orthogonally. Although the approach is still in its infancy and many critical parameters need optimization, we believe that it is a very promising technique to create tailor-made complex structures of (aqueous) functional soft matter.
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Affiliation(s)
- Pim van der Asdonk
- Department of Molecular Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
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11
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Yamaguchi D, Eimura H, Yoshio M, Kato T. Redox-active Supramolecular Fibers of a Nitronyl Nitroxide-based Gelator. CHEM LETT 2016. [DOI: 10.1246/cl.160441] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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12
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van der Asdonk P, Kragt S, Kouwer PHJ. Directing Soft Matter in Water Using Electric Fields. ACS APPLIED MATERIALS & INTERFACES 2016; 8:16303-16309. [PMID: 27269124 DOI: 10.1021/acsami.6b03910] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Directing the spatial organization of functional supramolecular and polymeric materials at larger length scales is essential for many biological and molecular optoelectronic applications. Although the application of electrical fields is one of the most powerful approaches to induce spatial control, it is rarely applied experimentally in aqueous solutions, since the low susceptibility of soft and biological materials requires the use of high fields, which leads to parasitic heating and electrochemical degradation. In this work, we demonstrate that we can apply electric fields when we use a mineral liquid crystal as a responsive template. Besides aligning and positioning functional soft matter, we show that the concentration of the liquid crystal template controls the morphology of the assembly. As our setup is very easy to operate and our approach lacks specific molecular interactions, we believe it will be applicable for a wide range of (aqueous) materials.
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Affiliation(s)
- Pim van der Asdonk
- Department of Molecular Materials, Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Stijn Kragt
- Department of Molecular Materials, Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - Paul H J Kouwer
- Department of Molecular Materials, Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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13
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Zhang X, Jie J, Deng W, Shang Q, Wang J, Wang H, Chen X, Zhang X. Alignment and Patterning of Ordered Small-Molecule Organic Semiconductor Micro-/Nanocrystals for Device Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:2475-503. [PMID: 26813697 DOI: 10.1002/adma.201504206] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/20/2015] [Indexed: 05/28/2023]
Abstract
Large-area alignment and patterning of small-molecule organic semiconductor micro-/nanocrystals (SMOSNs) at desired locations is a prerequisite for their practical device applications. Recent strategies for alignment and patterning of ordered SMOSNs and their corresponding device applications are highlighted.
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Affiliation(s)
- Xiujuan Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
| | - Jiansheng Jie
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
| | - Wei Deng
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
| | - Qixun Shang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
| | - Jincheng Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
| | - Hui Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
| | - Xianfeng Chen
- School of Chemistry and Forensic Sciences, Faculty of Life Sciences, University of Bradford, United Kingdom, BD7 1DP
| | - Xiaohong Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou Jiangsu, 215123, P. R. China
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Glazer PJ, Bergen L, Jennings L, Houtepen AJ, Mendes E, Boukany PE. Generating aligned micellar nanowire arrays by dewetting of micropatterned surfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1729-1734. [PMID: 24532372 DOI: 10.1002/smll.201303414] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 12/15/2013] [Indexed: 06/03/2023]
Affiliation(s)
- Piotr J Glazer
- Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands
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15
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Shaw L, Bao Z. The Large-Area, Solution-Based Deposition of Single-Crystal Organic Semiconductors. Isr J Chem 2014. [DOI: 10.1002/ijch.201400032] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Babu SS, Praveen VK, Ajayaghosh A. Functional π-gelators and their applications. Chem Rev 2014; 114:1973-2129. [PMID: 24400783 DOI: 10.1021/cr400195e] [Citation(s) in RCA: 1251] [Impact Index Per Article: 125.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sukumaran Santhosh Babu
- Photosciences and Photonics Group, Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Trivandrum 695019, India
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17
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Yoshio M, Konishi R, Sakamoto T, Kato T. Bisphenylsulfone-based molecular assemblies: polar columnar liquid crystals aligned in electric fields and fibrous aggregates in organic solvents. NEW J CHEM 2013. [DOI: 10.1039/c2nj40681k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Su B, Wang S, Wu Y, Chen X, Song Y, Jiang L. Small molecular nanowire arrays assisted by superhydrophobic pillar-structured surfaces with high adhesion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:2780-2785. [PMID: 22511447 DOI: 10.1002/adma.201200294] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 02/23/2012] [Indexed: 05/31/2023]
Abstract
Elaborately programmed fluorescent calcein nanowire arrays can be prepared with the aid of superhydrophobic pillar-structured surfaces with high adhesion. Each nanowire can be precisely positioned by well designed tip-structured micropillars, indicating an advance in the methodologies of controlling small molecular 1D organic nanostructures. The as-prepared fluorescent nanowire arrays can serve as a ferrous salt sensing device.
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Affiliation(s)
- Bin Su
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, PR China
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19
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Su B, Wu Y, Jiang L. The art of aligning one-dimensional (1D) nanostructures. Chem Soc Rev 2012; 41:7832-56. [DOI: 10.1039/c2cs35187k] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Wu Y, Hirai Y, Tsunobuchi Y, Tokoro H, Eimura H, Yoshio M, Ohkoshi SI, Kato T. Supramolecular approach to the formation of magneto-active physical gels. Chem Sci 2012. [DOI: 10.1039/c2sc00714b] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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21
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Motto JM, Castillo A, Greer A, Montemayer LK, Sheepwash EE, Schwan AL. Synthetic scope, computational chemistry and mechanism of a base induced 5-endo cyclization of benzyl alkynyl sulfides. Tetrahedron 2011; 67:1002-1010. [PMID: 21442022 PMCID: PMC3063364 DOI: 10.1016/j.tet.2010.11.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We present an experimental and computational study of the reaction of aryl substituted benzyl 1-alkynyl sulfides with potassium alkoxide in acetonitrile, which produces 2-aryl 2,3-dihydrothiophenes in poor to good yields. The cyclization is most efficient with electron withdrawing groups on the aromatic ring. Evidence indicates there is rapid exchange of protons and tautomerism of the alkynyl unit prior to cyclization. Theoretical calculations were also conducted to help rationalize the base induced 5-endo cyclization of benzyl 1-propynyl sulfide (1a). The potential energy surface was calculated for the formation of 2,3-dihydrothiophene in a reaction of benzyl 1-propynyl sulfide (1a) with potassium methoxide. Geometries were optimized with CAM-B3LYP/6-311+G(d,p) in acetonitrile with the CPCM solvent model. It is significant that the benzyl propa-1,2-dien-1-yl sulfane (6) possessed a lower benzylic proton affinity than the benzyl prop-2-yn-1-yl sulfane (8) thus favoring the base induced reaction of the former. From benzyl(propa-1,2-dien-1-yl sulfane (6), 2,3-dihydrothiophene can be formed via a conjugate base that undergoes 5-endo-trig cyclization followed by a protonation step.
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Affiliation(s)
- John M Motto
- Department of Chemistry, University of Guelph, Guelph, ON Canada, N1G 2W1
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22
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Sobczuk AA, Tamaru SI, Shinkai S. New strategy for controlling the oligothiophene aggregation mode utilizing the gel-to-sol phase transition induced by crown-alkali metal interactions. Chem Commun (Camb) 2011; 47:3093-5. [DOI: 10.1039/c1cc00026h] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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24
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Kato T, Shoji Y, Yoshio M, Yamane S, Yasuda T. Functional Soft Materials: Nanostructured Liquid Crystals and Self-Assembled Fibrous Aggregates. J SYN ORG CHEM JPN 2010. [DOI: 10.5059/yukigoseikyokaishi.68.1169] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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