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Matoba S, Kanzaki C, Yamashita K, Kusukawa T, Fukuhara G, Okada T, Narushima T, Okamoto H, Numata M. Directional Supramolecular Polymerization in a Dynamic Microsolution: A Linearly Moving Polymer's End Striking Monomers. J Am Chem Soc 2021; 143:8731-8746. [PMID: 34060820 DOI: 10.1021/jacs.1c02644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Although directional chain reactions are common in nature's self-assembly processes and in covalent polymerizations, it has been challenging to perform such processes in artificial one-dimensional self-assembling systems. In this paper, we describe a system, employing perylene bisimide (PBI) derivatives as monomers, for selectively activating one end of a supramolecular polymer during its growth and, thereby, realizing directional supramolecular polymerization. Upon introduction of a solution containing only a single PBI monomer into the microflow channel, nucleation was induced spontaneously. The dependency of the aggregation efficiency on the flow rate suggested that the shear force facilitated collisions among the monomers to overcome the activation energy required for nucleation. Next, by introducing a solution containing both monomer and polymer, we investigated how the shear force influenced the monomer-polymer interactions. In situ fluorescence spectra and linear dichroism revealed that growth of the polymers was accelerated only when they were oriented under the influence of shear stress. Upon linear motion of the oriented polymer, polymer growth at that single end became predominant relative to the nucleation of freely diffusing monomers. When applying this strategy to a two-monomer system, the second (less active) monomer reacted selectively at the forward-facing terminus of the first polymer, leading to the creation of a diblock copolymer through formation of a molecular heterojunction. This strategy-friction-induced activation of a single end of a polymer-should be applicable more generally to directional supramolecular block copolymerizations of various functional molecules, allowing molecular heterojunctions to be made at desired positions in a polymer.
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Affiliation(s)
- Shota Matoba
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Chisako Kanzaki
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Kae Yamashita
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Takahiro Kusukawa
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Gaku Fukuhara
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Tetsuya Narushima
- Institute for Molecular Science and The Graduate University for Advanced Studies (Sokendai), 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Hiromi Okamoto
- Institute for Molecular Science and The Graduate University for Advanced Studies (Sokendai), 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Munenori Numata
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
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Kanzaki C, Matoba S, Inagawa A, Fukuhara G, Okada T, Narushima T, Okamoto H, Numata M. Linear Momentum of a Microfluid Realizes an Anisotropic Reaction at the Ends of a Supramolecular Nanofiber. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200279] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chisako Kanzaki
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Shota Matoba
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
| | - Arinori Inagawa
- Graduate School of Regional Development and Creativity, Utsunomiya University, Utsunomiya, Tochigi 321-8585, Japan
| | - Gaku Fukuhara
- Department of Chemistry, Tokyo Institute of Technology, Tokyo 152-8551, Japan
- JST, PRESTO, Kawaguchi, Saitama 332-0012, Japan
| | - Tetsuo Okada
- Department of Chemistry, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - Tetsuya Narushima
- Institute for Molecular Science and The Graduate University for Advanced Studies (Sokendai), 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Hiromi Okamoto
- Institute for Molecular Science and The Graduate University for Advanced Studies (Sokendai), 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Munenori Numata
- Department of Biomolecular Chemistry, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan
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Adachi K, Ura Y, Kanetada N. Stimuli-triggered reversible switching mechanism between H- and J-type supramolecular assemblies of cationic porphyrins adsorbed on tungsten(VI) oxide surface. J PORPHYR PHTHALOCYA 2018. [DOI: 10.1142/s1088424618500372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Supramolecular organic dye–inorganic semiconductor nanocrystal assemblies are potentially useful in a broad range of technologies and applications, including photovoltaic systems, but the molecular basis of the adsorption of dye molecules onto the semiconductor surfaces remains poorly understood. Herein, we investigated the pH-dependent adsorption and conformational change of two cationic porphyrin stereoisomers [5,10-diphenyl-15,20-di([Formula: see text]-methyl-4-pyridyl)porphyrin (cis-DMPyP) and 5,15-diphenyl-10,20-di([Formula: see text]-methyl-4-pyridyl)porphyrin (trans-DMPyP)] on the tungsten(VI) oxide (WO[Formula: see text] colloid nanoparticle in aqueous media by means of UV-vis absorption spectroscopy. In accordance with the combination of a modified Langmuir adsorption model and Kasha’s exciton coupling model, the molecular orientation and stacking arrangement of DMPyP derivatives on the WO[Formula: see text] colloid surface are discussed in detail. In the trans-DMPyP/WO[Formula: see text] aqueous system, trans-DMPyP molecules adopted flat-on orientation with respect to the WO[Formula: see text] colloid surface and eventually formed head-to-tail [Formula: see text]-dimers regardless of pH conditions. cis-DMPyP molecules in the acidic system also lay flat-on and mainly formed [Formula: see text]-dimers on the WO[Formula: see text] colloid surface, whereas ones in the neutral system exhibited a dominant edge-on orientation and had a higher tendency to form face-to-face [Formula: see text]-dimers. Additionally, we have also convincingly demonstrated the pH-triggered switchable [Formula: see text]-stacking geometry of cis-DMPyP molecules from [Formula: see text]- to [Formula: see text]-dimer and vice versa on the WO[Formula: see text] colloid surface. Such findings will undoubtedly provide a pertinent guideline for the rational design of stimuli-responsive organic-inorganic materials.
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Affiliation(s)
- Kenta Adachi
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
- Opto-Energy Research Center, Yamaguchi University, Yamaguchi, 753-8511, Japan
| | - Yukimasa Ura
- Department of Chemistry, Graduate School of Sciences & Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Naoya Kanetada
- Department of Environmental Science & Engineering, Graduate School of Science & Engineering, Yamaguchi University, Yamaguchi, Japan
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Ribo JM, El-Hachemi Z, Arteaga O, Canillas A, Crusats J. Hydrodynamic Effects in Soft-matter Self-assembly: The Case of J-Aggregates of Amphiphilic Porphyrins. CHEM REC 2017; 17:713-724. [DOI: 10.1002/tcr.201600133] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Josep M. Ribo
- Department of Inorganic and Organic Chemistry; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- Institute of Cosmos Sciences; IEEC-UB; c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Zoubir El-Hachemi
- Department of Inorganic and Organic Chemistry; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- Institute of Cosmos Sciences; IEEC-UB; c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Oriol Arteaga
- Department of Applied Physics; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- FEMAN Group; Institute of Nanoscience and Nanotechnology (IN2UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Adolf Canillas
- Department of Applied Physics; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- FEMAN Group; Institute of Nanoscience and Nanotechnology (IN2UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
| | - Joaquim Crusats
- Department of Inorganic and Organic Chemistry; University of Barcelona (UB); c. Martí I Franques 1 08- Barcelona Catalonia Spain
- Institute of Cosmos Sciences; IEEC-UB; c. Martí I Franques 1 08- Barcelona Catalonia Spain
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Vortex-induced alignment of a water soluble supramolecular nanofiber composed of an amphiphilic dendrimer. Molecules 2013; 18:7071-80. [PMID: 23774945 PMCID: PMC6270294 DOI: 10.3390/molecules18067071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 06/07/2013] [Accepted: 06/08/2013] [Indexed: 12/02/2022] Open
Abstract
We have synthesized a novel amphiphilic naphthalene imide bearing a cationic dendrimer wedge (NID). NID molecules in water self-assemble to form a two-dimensional ribbon, which further coils to give a linear supramolecular nanofiber. The sample solution showed linear dichroism (LD) upon stirring of the solution, where NID nanofibers dominantly align at the center of vortex by hydrodynamic interaction with the downward torsional flows.
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Okano K, Yamashita T. Formation of Chiral Environments by a Mechanical Induced Vortex Flow. Chemphyschem 2012; 13:2263-71. [DOI: 10.1002/cphc.201200003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 03/24/2012] [Indexed: 11/06/2022]
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Ando Y, Sugihara T, Kimura K, Tsuda A. A self-assembled helical anthracene nanofibre whose P- and M-isomers show unequal linear dichroism in a vortex. Chem Commun (Camb) 2011; 47:11748-50. [DOI: 10.1039/c1cc14241k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tsuda A, Nagamine Y, Watanabe R, Nagatani Y, Ishii N, Aida T. Spectroscopic visualization of sound-induced liquid vibrations using a supramolecular nanofibre. Nat Chem 2010; 2:977-83. [PMID: 20966956 DOI: 10.1038/nchem.825] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 07/26/2010] [Indexed: 11/09/2022]
Abstract
The question of whether sound vibration of a medium can bring about any kind of molecular or macromolecular events is a long-standing scientific controversy. Although it is known that ultrasonic vibrations with frequencies of more than 1 MHz are able to align certain macromolecules in solution, no effect has yet been reported with audible sound, the frequency of which is much lower (20-20,000 Hz). Here, we report on the design of a supramolecular nanofibre that in solution becomes preferentially aligned parallel to the propagation direction of audible sound. This phenomenon can be used to spectroscopically visualize sound-induced vibrations in liquids and may find application in a wide range of vibration sensing technologies.
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Affiliation(s)
- Akihiko Tsuda
- Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan.
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Watarai H, Adachi K. Measuring the optical chirality of molecular aggregates at liquid-liquid interfaces. Anal Bioanal Chem 2010; 395:1033-46. [PMID: 19727689 DOI: 10.1007/s00216-009-3012-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Revised: 07/20/2009] [Accepted: 07/24/2009] [Indexed: 12/01/2022]
Abstract
Some new experimental methods for measuring the optical chirality of molecular aggregates formed at liquid-liquid interfaces have been reviewed. Chirality measurements of interfacial aggregates are highly important not only in analytical spectroscopy but also in biochemistry and surface nanochemistry. Among these methods, a centrifugal liquid membrane method was shown to be a highly versatile method for measuring the optical chirality of the liquid-liquid interface when used in combination with a commercially available circular dichroism (CD) spectropolarimeter, provided that the interfacial aggregate exhibited a large molar absorptivity. Therefore, porphyrin and phthalocyanine were used as chromophoric probes of the chirality of itself or guest molecules at the interface. A microscopic CD method was also demonstrated for the measurement of a small region of a film or a sheet sample. In addition, second-harmonic generation and Raman scattering methods were reviewed as promising methods for detecting interfacial optical molecules and measuring bond distortions of chiral molecules, respectively.
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Affiliation(s)
- Hitoshi Watarai
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
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Tsuda A, Alam M, Harada T, Yamaguchi T, Ishii N, Aida T. Spectroscopic Visualization of Vortex Flows Using Dye-Containing Nanofibers. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200703083] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tsuda A, Alam MA, Harada T, Yamaguchi T, Ishii N, Aida T. Spectroscopic Visualization of Vortex Flows Using Dye-Containing Nanofibers. Angew Chem Int Ed Engl 2007; 46:8198-202. [PMID: 17768756 DOI: 10.1002/anie.200703083] [Citation(s) in RCA: 213] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Akihiko Tsuda
- Department of Chemistry and Biotechnology, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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Adachi K, Watarai H. Binding Behavior of Subphthalocyanine-Tagged Testosterone with Human Serum Albumin at then-Hexane/Water Interface. Anal Chem 2006; 78:6840-6. [PMID: 17007504 DOI: 10.1021/ac060720+] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Subphthalocyaninatoboron(III) was applied for the first time as a novel marker-tag of testosterone (Subpc-test) for the binding analysis with human serum albumin (HSA) at a liquid/liquid interface. The binding interaction of Subpc-test with HSA at the n-hexane/water interface was studied by UV-visible absorption and circular dichroism (CD) spectroscopy combined with a centrifugal liquid membrane cell at different pHs of aqueous solutions. Complementary studies by a high-speed stirring experiment and an interfacial tension measurement were also performed to characterize the interfacial adsorptivity of Subpc-test and HSA molecules, respectively. The n-hexane solution of Subpc-test showed no optical chirality, but the contact with the aqueous solution of HSA induced its optical chirality, clearly suggesting the formation of Subpc-test/HSA complexes at the n-hexane/water interface. Furthermore, pH profiles of CD signals showed that the interaction between Subpc-test and HSA was very sensitive to the neutral-to-base transition (N-B transition). Interfacial formation of the Subpc-test/HSA complex was studied in the presence of the site-selective ligand, furosemide (site I) or cefaclor (site II). The experimental results suggested that Subpc-test is bound to site I of the HSA molecule at the n-hexane/water interface. This technique using subphthalocyanine as a tag molecule and the liquid/liquid interface as a two-dimensional nanoreaction field will be useful for the evaluation of the interaction between drugs or hormones and proteins.
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Affiliation(s)
- Kenta Adachi
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
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