1
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Mori H, Nakazato R, Tachibana H, Shimada T, Ishida T, Ryo M, Hasegawa E, Takagi S. Fluorescence enhancement of benzimidazolium derivative on clay nanosheets by surface-fixation induced emission (S-FIE). Photochem Photobiol Sci 2024; 23:1077-1086. [PMID: 38679645 DOI: 10.1007/s43630-024-00576-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/10/2024] [Indexed: 05/01/2024]
Abstract
The photophysical behaviors of benzimidazolium derivative [4-(1,3-dimethylbenzimidazol-3-imu-2-yl)-N, N-diphenylaniline (2-(4-(diphenylamino)phenyl)-1,3-dimethyl-1H-benzo[d]imidazol-3-ium)] (BID) in water, organic solvents and on synthetic saponite were investigated. The fluorescence quantum yield (Φf) of BID was 0.91 on the saponite surface under the optimal condition, while that in water was 0.010. Such fluorescence enhancement on the inorganic surface is called "surface-fixation induced emission (S-FIE)". This fluorescence enhancement ratio for BID is significantly high compared to that of conventional S-FIE active dyes. From the values of Φf and the excited lifetime, the non-radiative deactivation rate constant (knr) and radiative deactivation rate constant (kf) of BID on the saponite surface and in water were determined. Results showed that the factors for fluorescence enhancement were both the increase of kf and the decrease of knr on the saponite surface; especially, knr decreased by more than two orders due to the effect of nanosheets.
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Affiliation(s)
- Hakan Mori
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
| | - Ryosuke Nakazato
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-Ku, Tokyo, 152-8550, Japan
| | - Hiroshi Tachibana
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji-Shi, Tokyo, 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji-Shi, Tokyo, 192-0397, Japan
| | - Miyajima Ryo
- Department of Chemistry, Faculty of Science, Niigata University, Niigata, 950-2181, Japan
| | - Eietsu Hasegawa
- Department of Chemistry, Faculty of Science, Niigata University, Niigata, 950-2181, Japan.
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachioji-Shi, Tokyo, 192-0397, Japan.
- Research Center for Hydrogen Energy-Based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-Ohsawa, Hachiohji-Shi, Tokyo, 192-0397, Japan.
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2
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Bujdák J. Controversial Issues Related to Dye Adsorption on Clay Minerals: A Critical Review. Molecules 2023; 28:6951. [PMID: 37836793 PMCID: PMC10574638 DOI: 10.3390/molecules28196951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
This critical review points out the most serious and problematic issues to be found in the literature on the adsorption of dyes on clay minerals. The introduction draws attention to the fundamental problems, namely the insufficient characterization of adsorbents, the influence of impurities on the adsorption of dyes, and the choice of inappropriate models for the description of the very complex systems that clay minerals and their systems represent. This paper discusses the main processes accompanying adsorption in colloidal systems of clay minerals. The relationship between the stability of the colloidal systems and the adsorption of dye molecules is analyzed. The usual methodological procedures for determining and evaluating the adsorption of dyes are critically reviewed. A brief overview and examples of modified clay minerals and complex systems for the adsorption of organic dyes are summarized. This review is a guide for avoiding some faults in characterizing the adsorption of organic dyes on clay minerals, to improve the procedure for determining adsorption, to evaluate results correctly, and to find an appropriate theoretical interpretation. The main message of this article is a critical analysis of the current state of the research in this field, but at the same time, it is a guide on how to avoid the most common problems and mistakes.
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Affiliation(s)
- Juraj Bujdák
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia; ; Tel.: +421-2-9014-9602
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, 845 36 Bratislava, Slovakia
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3
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Bujdák J, Baranyaiová TŠ, Boháč P, Mészáros R. Adsorption of Dye Molecules and Its Potential for the Development of Photoactive Hybrid Materials Based on Layered Silicates. J Phys Chem B 2023; 127:1063-1073. [PMID: 36696580 DOI: 10.1021/acs.jpcb.2c07814] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present paper gives a brief account of the latest advances in understanding of the mechanism and implications of dye adsorption with a special focus on layered silicate surfaces. It has been clearly demonstrated that the controlled adsorption of novel or already well-known dyes has equally great yet unexplored potential. In principle, the well-engineered surface confinement of the molecules may lead to their aggregation, adsorption, or intercalation-induced fluorescence emission even with conventional dyes, which are not considered as luminophores in solutions or in the solid state. We envision the utilization of silicate-based heterogeneous systems to produce novel polymer blended films or structured liquids, as well as to develop a plethora of other photophysical and biomedical applications.
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Affiliation(s)
- Juraj Bujdák
- Department of Physical and Theoretical Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, 842 15 Bratislava, Slovakia.,Institute of Inorganic Chemistry, Slovak Academy of Sciences, 845 36 Bratislava, Slovakia
| | | | - Peter Boháč
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, 845 36 Bratislava, Slovakia.,Centre for Advanced Materials Application, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia
| | - Róbert Mészáros
- Laboratory of Interfaces and Nanosized Systems, Institute of Chemistry, Eötvös Loránd University, H-1117 Budapest, Hungary.,Department of Chemistry, Faculty of Education, J. Selye University, 945 01 Komárno, Slovakia
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4
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Su G, Li Z, Gong J, Zhang R, Dai R, Deng Y, Tang BZ. Information-Storage Expansion Enabled by a Resilient Aggregation-Induced-Emission-Active Nanocomposite Hydrogel. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2207212. [PMID: 36168849 DOI: 10.1002/adma.202207212] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Advanced materials with high performance and distinctive function are one of the main driving forces for the development of human society. The selection of appropriate materials and adequately utilizing their features to apply them in a specific area rationally are of great significance but remain challenging. Herein, an aggregation-induced emission (AIE)-active nanocomposite (NC) hydrogel is developed by introducing a pH-responsive AIE luminogen (AIEgen) into a Laponite XLS/polyacrylamide-based NC hydrogel (Laponite is a trademark of the company BYK Additives Ltd.). The AIEgen can protonate to interact with the negatively charged clay through the electrostatic interaction, which results in a drastic fluorescence enhancement due to the restriction of intramolecular motion by the rigid clay to the protonated AIEgen. This behavior facilitates the input of fluorescent information with a high contrast ratio in the hydrogel by acid stimulation. Moreover, by utilizing the excellent resilience of the hydrogel, hierarchically inputting and displaying the information in the original and stretched states of the hydrogel film is realized, which achieves information-storage expansion and dual-encryption via switching between stretching and restoring the film. This work showcases fully and synergistically utilizing the superiorities of various advanced materials to achieve superior applications and should guide the future development of advanced materials in emerging areas.
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Affiliation(s)
- Gongmeiyue Su
- Institute of Engineering Medicine, School of Medical Technology, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, P. R. China
| | - Zhao Li
- Institute of Engineering Medicine, School of Medical Technology, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, P. R. China
| | - Junyi Gong
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen, Guangdong, 518172, P. R. China
| | - Ruoyao Zhang
- Institute of Engineering Medicine, School of Medical Technology, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, P. R. China
| | - Rongji Dai
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, P. R. China
| | - Yulin Deng
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmaceuticals, School of Life Science, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing, 100081, P. R. China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 2001 Longxiang Boulevard, Longgang District, Shenzhen, Guangdong, 518172, P. R. China
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5
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Arakawa K, Shimada T, Ishida T, Takagi S. Photo-cyclization, Photo-ring opening and Thermo-ring opening Reaction of Cationic Diarylethene Adsorbed on the Clay Nanosheet Surface. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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6
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Bhuin S, Roy S, Chakraborty C, Chakravarty M. Emission enhancement in twisted pyridyl salt using Montmorillonite nanoclay by intercalation and surface-fixation process. NEW J CHEM 2022. [DOI: 10.1039/d2nj01676a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Boosting the fluorescence (FL) intensity for a weak/nonemissive molecule is a challenge. This work describes the improvement of FL intensity for a nonemissive conformationally twisted π-conjugated pyridyl salt. This pyridyl...
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7
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Ishida Y. Manipulation of Precise Molecular Arrangements and Their Photochemical Properties on Inorganic Surfaces via Multiple Electrostatic Interactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yohei Ishida
- Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
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8
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Arakawa K, Shimada T, Ishida T, Takagi S. "In-water" Dehydration Reaction of an Aromatic Diol on an Inorganic Surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11978-11985. [PMID: 34482684 DOI: 10.1021/acs.langmuir.1c01499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The effect of a synthetic saponite surface on the "in-water" dehydration reaction of diol was examined using 4-formyl-1-methylquinolinium salt (MQu+) as a substrate. The equilibrium between aldehyde (MQu+-Aldehyde) and diol (MQu+-Diol) was affected by the surrounding environment. The equilibrium behavior was observed by 1H nuclear magnetic resonance (NMR) and UV-vis absorption measurements. Although MQu+ was completely in the form of MQu+-Diol in water, the equilibrium almost shifted to the MQu+-Aldehyde side when MQu+ was adsorbed on the saponite surface in water. In addition, the MQu+-Aldehyde ratio depended on the negative charge density of saponite. The factors that determine MQu+-Aldehyde: MQu+-Diol ratio were discussed from the thermodynamic analysis of the system. These data indicate that the electrostatic interaction between the charged saponite surface and MQu+ stabilized the aldehyde side enthalpically and destabilized it entropically. The major reason for these results is considered to be the difference in adsorption stabilization between MQu+-Aldehyde and MQu+-Diol on saponite surfaces.
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Affiliation(s)
- Kyosuke Arakawa
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
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9
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Yoshida Y, Shimada T, Ishida T, Takagi S. Effects of the Surface Charge Density of Clay Minerals on Surface-Fixation Induced Emission of Acridinium Derivatives. ACS OMEGA 2021; 6:21702-21708. [PMID: 34471772 PMCID: PMC8388081 DOI: 10.1021/acsomega.1c03157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
Surface-fixation induced emission is a fluorescence enhancement phenomenon, which is expressed when dye molecules satisfy a specific adsorption condition on the anionic clay surface. The photophysical behaviors of two types of cationic acridinium derivatives [10-methylacridinium perchlorate (Acr+) and 10-methyl-9-phenylacridinium perchlorate (PhAcr+)] on the synthetic saponites with different anionic charge densities were investigated. Under the suitable conditions, the fluorescence quantum yield (Φf) of PhAcr+ was enhanced 22.3 times by the complex formation with saponite compared to that in water without saponite. As the inter-negative charge distance of saponite increased from 1.04 to 1.54 nm, the Φf of PhAcr+ increased 1.25 times. In addition, the increase in the negative charge distance caused the increase in the integral value of the extinction coefficient and the radiative deactivation rate constant (k f) and the decrease in the nonradiative deactivation rate constant. It should be noted that the 2.3 times increase in k f is the highest among the reported values for the effect of clay. From these results, it was concluded that the photophysical properties of dyes can be modulated by changing the charge density of clay minerals.
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Affiliation(s)
- Yuma Yoshida
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
- Research
Center for Gold Chemistry, Tokyo Metropolitan
University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
- Research
Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department
of Applied Chemistry for Environment, Graduate School of Urban Environmental
Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan
- Research
Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
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10
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Eguchi M, Nugraha AS, Rowan AE, Shapter J, Yamauchi Y. Adsorchromism: Molecular Nanoarchitectonics at 2D Nanosheets-Old Chemistry for Advanced Chromism. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2100539. [PMID: 34306979 PMCID: PMC8292911 DOI: 10.1002/advs.202100539] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 05/11/2023]
Abstract
Chromism induced by changes in the electronic states of dye molecules due to surface adsorption is termed "adsorchromism" in this article. These changes of molecular electronic states are induced by protonation, aggregation, intramolecular structural changes, and other processes, depending on the surface environment. Intramolecular structural changes, such as co-planarization and decreased molecular motion are the most characteristic and interesting behavior of dye molecules at the surfaces, resulting in spectral shift and/or emission enhancement. In this review, adsorchromism at the surfaces of layered materials are summarized since their flexibility of interlayer distance, surface flatness, and transparency is suitable for a detailed observation. By understanding the relationship between adsorchromism and the electronic states of molecules on the surfaces, it will be possible to induce some desired functions which can be realized simply by adsorption, instead of complicated organic syntheses. Thus, adsorchromism has potential applications such as effective solar energy harvesting systems, or biological/chemical sensors to visualize environmental changes.
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Affiliation(s)
- Miharu Eguchi
- International Center for Materials Nanoarchitectonics (WPI‐MANA)National Institute for Materials Science1‐1 NamikiTsukubaIbaraki305‐0044Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN)The University of QueenslandBrisbaneQLD4072Australia
- JST‐ERATO Yamauchi Materials Space‐Tectonics ProjectNational Institute for Materials Science (NIMS)1‐1 NamikiTsukubaIbaraki305‐0044Japan
| | - Asep Sugih Nugraha
- Australian Institute for Bioengineering and Nanotechnology (AIBN)The University of QueenslandBrisbaneQLD4072Australia
| | - Alan E. Rowan
- Australian Institute for Bioengineering and Nanotechnology (AIBN)The University of QueenslandBrisbaneQLD4072Australia
| | - Joe Shapter
- Australian Institute for Bioengineering and Nanotechnology (AIBN)The University of QueenslandBrisbaneQLD4072Australia
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN)The University of QueenslandBrisbaneQLD4072Australia
- JST‐ERATO Yamauchi Materials Space‐Tectonics ProjectNational Institute for Materials Science (NIMS)1‐1 NamikiTsukubaIbaraki305‐0044Japan
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11
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Loukhina IV, Gradova MA, Khudyaeva IS, Lobanov АV, Belykh DV. Synthesis and Photocatalytic Properties of Magnesium Silicate Modified with Cationic Chlorin e6 Derivatives. RUSS J GEN CHEM+ 2021. [DOI: 10.1134/s1070363221040198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Onishi R, Sano K, Shimada T, Ishida T, Takagi S. Dye-Sensitized Hydrogen Production by Porphyrin/Rh-Doped-Titania-Nanosheet Complex. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ryota Onishi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Keito Sano
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Gold Chemistry, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
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Giovannini G, Rossi RM, Boesel LF. Changes in Optical Properties upon Dye-Clay Interaction: Experimental Evaluation and Applications. NANOMATERIALS 2021; 11:nano11010197. [PMID: 33466754 PMCID: PMC7830015 DOI: 10.3390/nano11010197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/07/2021] [Accepted: 01/12/2021] [Indexed: 02/07/2023]
Abstract
The development of hybrid materials with unique optical properties has been a challenge for the creation of high-performance composites. The improved photophysical and photochemical properties observed when fluorophores interact with clay minerals, as well as the accessibility and easy handling of such natural materials, make these nanocomposites attractive for designing novel optical hybrid materials. Here, we present a method of promoting this interaction by conjugating dyes with chitosan. The fluorescent properties of conjugated dye–montmorillonite (MMT) hybrids were similar to those of free dye–MMT hybrids. Moreover, we analyzed the relationship between the changes in optical properties of the dye interacting with clay and its structure and defined the physical and chemical mechanisms that take place upon dye–MMT interactions leading to the optical changes. Conjugation to chitosan additionally ensures stable adsorption on clay nanoplatelets due to the strong electrostatic interaction between chitosan and clay. This work thus provides a method to facilitate the design of solid-state hybrid nanomaterials relevant for potential applications in bioimaging, sensing and optical purposes.
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Okada T, Miyamoto Y, Kurihara H, Mochiduki Y, Katsumi S, Ito F. Electronic interactions between a quaternary pyridyl-β-diketonate and anionic clay nanosheets facilitate intense photoluminescence. Photochem Photobiol Sci 2020; 19:1280-1288. [PMID: 32748926 DOI: 10.1039/d0pp00166j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Electrostatic interactions between a quaternary pyridyl-β-diketonate and anionic charged nanosheets were observed to produce a highly emissive dispersion in a rich water solution. A greater fluorescence quantum yield of approximately 50% was obtained when a luminogenic β-diketonate, 1-(4-methoxyphenyl)-3-(3-hydroxyethyl-pyridinium bromide)-1,3-propandione (prepared by the Claisen condensation reaction and subsequent quaternization), was molecularly dispersed and enclosed by a couple of atomically flat ultrathin (approximately 1.0 nm) silicate sheets of anionic layered clay. By accommodating β-diketonate into a narrow interlamellar space (approximately 0.4 nm distance), the molecular motion was suppressed, as confirmed by a smaller non-radiative relaxation rate constant, which was obtained by time-resolved luminescence and quantum yield measurements. Because the dense packing of β-diketonate quenched the excited state, the isolation of luminogens by the co-adsorption of photochemical inert cations (tetramethylammonium and benzylammonium) was prevented by concentration quenching. A lower quantum yield was obtained by expanding the interlayer distance above 1.0 nm by co-adsorbing a photo-inactive water-soluble polymer, poly(vinylpyrrolidone). Therefore, the fixation and spatial separation of β-diketonate in the narrow interlayer space was determined to be essential for obtaining strong emission.
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Affiliation(s)
- Tomohiko Okada
- Research Initiative for Supra-Materials, Shinshu University, Nagano 380-8553, Japan. and Department of Chemistry and Material Engineering, Shinshu University, Nagano 380-8553, Japan
| | - Yoko Miyamoto
- Department of Chemistry and Material Engineering, Shinshu University, Nagano 380-8553, Japan
| | - Haruka Kurihara
- Department of Chemistry and Material Engineering, Shinshu University, Nagano 380-8553, Japan
| | | | - Shiho Katsumi
- Institute of Education, Shinshu University, Nagano 380-8544, Japan
| | - Fuyuki Ito
- Institute of Education, Shinshu University, Nagano 380-8544, Japan
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15
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Ley C, IShak A, Metral B, Brendlé J, Allonas X. Tailoring a hybrid three-component photoinitiating system for 3D printing. Phys Chem Chem Phys 2020; 22:20507-20514. [PMID: 32966421 DOI: 10.1039/d0cp03153d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In the field of additive manufacturing DLP vat technologies are promising 3D printing techniques. The need of highly efficient photoiniating systems drives us to the development of photocyclic 3-component initiators. In order to improve the 3D printing sensitivity, we present in this paper the use of synthesized clay to tune up the photochemistry underlying the initiating radical production. Therefore, a three-component initiating system, based on a cationic dye, two coinitiators and with a clay filler suitable for DLP 3D printing of acrylate resins leading to high quality of parts and low printing time, is developed.
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Affiliation(s)
- C Ley
- LPIM, UHA, 3b rue A. Werner, 68200 Mulhouse, France.
| | - A IShak
- LPIM, UHA, 3b rue A. Werner, 68200 Mulhouse, France.
| | - B Metral
- LPIM, UHA, 3b rue A. Werner, 68200 Mulhouse, France.
| | - J Brendlé
- IS2M, CNRS UMR 7361, 15 Rue Jean Starcky, 68057 Mulhouse, France
| | - X Allonas
- LPIM, UHA, 3b rue A. Werner, 68200 Mulhouse, France.
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Takigawa T, Yoshida Y, Fujimura T, Ishida T, Shimada T, Takagi S. Adsorption Behavior of Mono-Cationic Pyridinium Salts on the Clay Surface. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tomoaki Takigawa
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Yuma Yoshida
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takuya Fujimura
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Department of Physics and Materials Science, Interdisciplinary Graduate School of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue, Shimane 690-8504, Japan
| | - Tamao Ishida
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachiohji, Tokyo 192-0397, Japan
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17
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Eguchi M. Adsorption of Water Insoluble Porphyrin to Trioctahedral Layered Aluminosilicate and Its Surface Acidity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Miharu Eguchi
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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18
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Yoshida Y, Shimada T, Ishida T, Takagi S. Thermodynamic study of the adsorption of acridinium derivatives on the clay surface. RSC Adv 2020; 10:21360-21368. [PMID: 35518779 PMCID: PMC9054366 DOI: 10.1039/d0ra03158e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 05/17/2020] [Indexed: 12/03/2022] Open
Abstract
In this study, the adsorption behavior of mono-cationic acridinium derivatives on a synthetic clay mineral (Sumecton SA) was investigated. The acridinium derivatives were adsorbed on the clay surface without aggregation, as found from the changes in the absorption spectra of the acridinium derivatives with SSA and without SSA represented by two-component equilibrium systems of adsorbed and non-adsorbed components. Following the Langmuir isotherm analysis, the adsorption equilibrium constants and maximum adsorption amounts were determined for acridinium derivatives, and the Gibbs free energy change (ΔG) was calculated to be in the range of −33.8 to 40.0 kJ mol−1 from the adsorption equilibrium constants. These results indicated that the adsorption of acridinium derivatives on the clay surface was an exergonic reaction. Moreover, thermodynamic parameters such as enthalpy change (ΔH) and entropy change (ΔS) were obtained from the temperature effect experiments. For all acridinium derivatives, ΔH (from −7.82 to −26.0 kJ mol−1) and ΔS (0.047–0.088 kJ mol−1 K−1) were found to be negative and positive, respectively. It was suggested that not only electrostatic interactions, but also van der Waals forces and hydrophobic interactions played an important role in the adsorption of cationic aromatic molecules on the clay surface. Because these thermodynamic parameters showed a strong correlation with the molecular cross-sectional area of acridinium derivatives, it was suggested that the contribution of hydrophobic interactions became smaller as the molecular cross-sectional area became larger. Thermodynamic studies indicate that van der Waals and hydrophobic interactions contribute to the adsorption of mono-cationic acridinium derivatives on the clay surface.![]()
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Affiliation(s)
- Yuma Yoshida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan
| | - Tamao Ishida
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan.,Research Center for Gold Chemistry, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachiohji-shi Tokyo 192-0397 Japan.,Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University 1-1 Minami-ohsawa Hachiohji-shi Tokyo 192-0397 Japan +81 42 677 2839
| | - Shinsuke Takagi
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University 1-1 Minami-ohsawa Hachioji-shi Tokyo 192-0397 Japan.,Research Center for Hydrogen Energy-based Society (ReHES), Tokyo Metropolitan University 1-1 Minami-ohsawa Hachiohji-shi Tokyo 192-0397 Japan +81 42 677 2839
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19
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Carniato F, Gatti G, Bisio C. An overview of the recent synthesis and functionalization methods of saponite clay. NEW J CHEM 2020. [DOI: 10.1039/d0nj00253d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In this overview, a summary on the most common intercalation compounds based on saponite clays is reported. The attention is also focused on the one-pot methods for the production of functional saponite clays for different applications.
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Affiliation(s)
- Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica
- Università degli Studi del Piemonte Orientale” Amedeo Avogadro”
- 15121-Alessandria
- Italy
| | - Giorgio Gatti
- Dipartimento di Scienze e Innovazione Tecnologica
- Università degli Studi del Piemonte Orientale” Amedeo Avogadro”
- 15121-Alessandria
- Italy
| | - Chiara Bisio
- Dipartimento di Scienze e Innovazione Tecnologica
- Università degli Studi del Piemonte Orientale” Amedeo Avogadro”
- 15121-Alessandria
- Italy
- CNR-SCITEC Istituto di Scienze e Tecnologie Chimiche “G. Natta”
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20
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Nakazato R, Sano K, Ichihara H, Ishida T, Shimada T, Takagi S. Factors for the emission enhancement of dimidium in specific media such as in DNA and on a clay surface. Phys Chem Chem Phys 2019; 21:22732-22739. [PMID: 31384860 DOI: 10.1039/c9cp03285a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Dimidium (3,8-diamino-5-methyl-6-phenylphenanthridinium: NH2PhP) is a well-known fluorophore as a DNA probe, although its fluorescence enhancement mechanism is not clear. In this study, we investigated the fluorescence enhancement mechanism of NH2PhP on a clay surface by observing the fluorescence behavior. Four systematically selected phenanthridinium derivatives (PDs): NH2PhP, 3,8-bisdimethylamino-5-methyl-6-phenylphenanthridinium (NMe2PhP), 5-methyl-6-phenylphenanthridinium (PhP) and 5-methylphenanthridinium (P) and synthetic clay were used as guest and host materials, respectively. It was revealed that the suppression of hydrogen bonding with water (N-HOH or NH-OH2) is the dominant factor for the fluorescence enhancement on the clay surface for NH2PhP and NMe2PhP. In addition, judging from the fluorescence enhancement for NH2PhP, NMe2PhP and PhP and no fluorescence enhancement for P on the clay surface, the suppression of rotation of the phenyl ring was indicated to make a partial contribution to the fluorescence enhancement mechanism. Because the fluorescence enhancement behavior was quite similar on the clay surface and in DNA, the obtained results afford an important clue to discuss the fluorescence enhancement mechanism of NH2PhP in DNA.
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Affiliation(s)
- Ryosuke Nakazato
- Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji-shi, Tokyo 192-0397, Japan.
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21
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Fujimura T, Aoyama YH, Sasai R. Unique protonation behavior of cationic free-base porphyrins in the interlayer space of transparent solid films comprising layered α-zirconium phosphate. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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22
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Arakawa K, Nakazato R, Shimada T, Ishida T, Eguchi M, Takagi S. Effect of clay surface on aldehyde-diol equilibrium. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.150986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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23
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Dominguez MA, Insausti M, Ilari R, Zanini GP. Fluorescence enhancement novel green analytical method for paraquat herbicide quantification based on immobilization on clay. Analyst 2019; 144:3357-3363. [DOI: 10.1039/c9an00387h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Fluorescence emission enhancement by adsorption as a promising tool for the development of future green sensors.
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Affiliation(s)
- Marina A. Dominguez
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
| | - Matías Insausti
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
| | - Romina Ilari
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
| | - Graciela P. Zanini
- INQUISUR
- Departamento de Química
- Universidad Nacional del Sur (UNS)-CONICET
- 8000 Bahía Blanca
- Argentina
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24
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Tani Y, Ogawa T. Palladium-Catalyzed Double Carbonylative Cyclization of Benzoins: Synthesis and Photoluminescence of Bis-Ester-Bridged Stilbenes. Org Lett 2018; 20:7442-7446. [PMID: 30412413 DOI: 10.1021/acs.orglett.8b03169] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A palladium-catalyzed double carbonylative cyclization of benzoins has been developed, which realizes the synthesis of bis-ester-bridged stilbenes just in two steps from aldehydes. Thus, the obtained fully fused tetracyclic π-systems have a pyrano[3,2- b]pyran-2,6-dione (PPD) core on their center, showing two reversible reductions at low potentials. In addition, their photoluminescence properties are strikingly affected by the aromatic rings fused to the PPD core; bis- thieno-fused PPDs are found to be excellent fluorophores with quantum yields up to 0.98.
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Affiliation(s)
- Yosuke Tani
- Department of Chemistry, Graduate School of Science , Osaka University , Machikaneyama 1-1, Toyonaka , Osaka 560-0043 , Japan
| | - Takuji Ogawa
- Department of Chemistry, Graduate School of Science , Osaka University , Machikaneyama 1-1, Toyonaka , Osaka 560-0043 , Japan
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25
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Teepakakorn AP, Bureekaew S, Ogawa M. Adsorption-Induced Dye Stability of Cationic Dyes on Clay Nanosheets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14069-14075. [PMID: 30369238 DOI: 10.1021/acs.langmuir.8b02978] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Rhodamine 6G (R6G) was adsorbed on smectite clays, a natural montmorillonite, a synthetic saponite, and synthetic hectorites, and the decolorization of the dyes upon visible light irradiation was examined for aqueous suspensions and cast films. Excellent dye stability was achieved when a natural montmorillonite was used. Apart from R6G, better photostability was also achieved when the tris(2,2'-bipyridine)ruthenium(II) complex was adsorbed on a natural montmorillonite. The excited state of the dye was quenched efficiently by the impurities in the natural montmorillonite. From the relationship between the excited-state quenching (as derived from photoluminescence quantum efficiency and photoluminescence intensity) and the decolorization rate constant, the quenching of the excited state of the dye adsorbed on the natural montmorillonite was proposed as the important mechanism for the stabilization of dyes upon photoirradiation.
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26
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Adsorption and emission enhancement behavior of 4,4′-bipyridine on dispersed montmorillonite nano-sheets under aqueous conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Kudo N, Tsukamoto T, Tokieda D, Shimada T, Takagi S. Fluorescence Enhancement Behavior of Hemicyanine Derivatives on the Clay Nanosheets: Aggregation Induced Emission (AIE) vs. Surface-fixation Induced Emission (S-FIE). CHEM LETT 2018. [DOI: 10.1246/cl.180043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nana Kudo
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Takamasa Tsukamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Daiki Tokieda
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Center for Artificial Photosynthesis, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo 192-0397, Japan
- Center for Artificial Photosynthesis, Tokyo Metropolitan University, 1-1 Minami-ohsawa, Hachioji, Tokyo 192-0397, Japan
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28
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Sano K, Sonotani A, Tatsumi D, Ohtani Y, Shimada T, Takagi S. Characterization of dispersed titania nanosheet under aqueous conditions and its complex formation behavior with cationic porphyrin. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Hirose M, Ito F, Shimada T, Takagi S, Sasai R, Okada T. Photoluminescence by Intercalation of a Fluorescent β-Diketone Dye into a Layered Silicate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:13515-13521. [PMID: 29131640 DOI: 10.1021/acs.langmuir.7b03460] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A β-diketone dye was packed into the two-dimensional nanospace of a synthetic smectite (Sumecton SA), which is a cation-exchangeable layered silicate, to induce strong emission owing to molecular packing of the dye. An emissive dye, 1-(4-methoxyphenyl)-3-(4-pyridyl)-1,3-propandione, was prepared through a Claisen condensation reaction; the dye exhibited aggregation-induced emission, which is enhanced emission owing to clustering of molecules to form aggregates in poor solvents or in the solid state. The dye was nonemissive in solution. However, strong green emission was observed because of the restriction of molecular motion when the protonated dye was accommodated into the interlayer nanospace of the silicate layers through cation-exchange reactions. The restricted motion was confirmed by the smaller nonradiative relaxation rate constant obtained by time-resolved luminescence and quantum yield measurements. A moderate dye packing (0.11 mmol/g) in the interlayer space is important to obtain enhanced emission, whereas the intercalation of a large amount of dye (0.27 mmol/g) resulted in concentration quenching. Therefore, the interlayer space of the layered silicate used here was responsible for the strong emission because of moderate packing of the accommodated β-diketones.
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Affiliation(s)
- Mutsumi Hirose
- Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University , 4-17-1, Wakasato, Nagano 380-8553, Japan
| | - Fuyuki Ito
- Institution of Education, Shinshu University , 6-ro, Nishinagano, Nagano 380-8544, Japan
| | - Tetsuya Shimada
- Department of Applied Chemistry, Graduate Course of Urban Environmental Sciences, Tokyo Metropolitan University , 1-1, Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Shinsuke Takagi
- Department of Applied Chemistry, Graduate Course of Urban Environmental Sciences, Tokyo Metropolitan University , 1-1, Minami-ohsawa, Hachiohji-shi, Tokyo 192-0397, Japan
| | - Ryo Sasai
- Department of Physics and Materials Science, Interdisciplinary Graduate School of Science and Engineering, Shimane University , 1060 Nishikawatsu, 690-8504 Matsue, Japan
| | - Tomohiko Okada
- Department of Chemistry and Material Engineering, Faculty of Engineering, Shinshu University , 4-17-1, Wakasato, Nagano 380-8553, Japan
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30
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Eguchi M, Momotake M, Inoue F, Oshima T, Maeda K, Higuchi M. Inert Layered Silicate Improves the Electrochemical Responses of a Metal Complex Polymer. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35498-35503. [PMID: 28933528 DOI: 10.1021/acsami.7b13311] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A chemically inert, insulating layered silicate (saponite; SP) and an iron(II)-based metallo-supramolecular complex polymer (polyFe) were combined via electrostatic attraction to improve the electrochromic properties of polyFe. Structural characterization indicated that polyFe was intercalated into the SP nanosheets. Interestingly, the redox potential of polyFe was lowered by combining it with SP, and the current was measurable despite the insulating nature of SP. X-ray photoelectron spectroscopy showed that the decrease in the redox potential observed in the SP-polyFe hybrid was caused by the electrostatic neutralization of the Fe cation in polyFe by the negative charge on SP. Electrochemical analyses indicated that electron transfer occurred through electron hopping across the SP-polyFe hybrid. Control experiments using a metal complex composed of Fe and two 2,2':6',2''-terpyridine ligands (terpyFe) showed that SP contributes to the effective electron hopping. This modulation of the electrochemical properties by the layered silicates could be applied to other electrochemical systems, including hybrids of the redox-active ionic species and ion-exchangeable adsorbents.
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Affiliation(s)
- Miharu Eguchi
- Research Center for Functional Materials, National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Masako Momotake
- Research Center for Functional Materials, National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Fumie Inoue
- Research Center for Functional Materials, National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Takayoshi Oshima
- Department of Chemistry, School of Science, Tokyo Institute of Technology , 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- Japan Society for the Promotion of Science , Kojimachi Business Center Building, 5-3-1, Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Kazuhiko Maeda
- Department of Chemistry, School of Science, Tokyo Institute of Technology , 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Masayoshi Higuchi
- Research Center for Functional Materials, National Institute for Materials Science , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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31
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Oxygen Sensing by the Hybrid Langmuir-Blodgett Films of Iridium(III) Complexes and Synthetic Saponite on the Basis of Energy Transfer. CHEMOSENSORS 2017. [DOI: 10.3390/chemosensors5040027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Ley C, Brendlé J, Miranda M, Allonas X. Spectroscopic Studies of the Interactions between a Cationic Cyanine Dye and a Synthetic Phyllosilicate: From Photophysics to Hybrid Materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:6812-6818. [PMID: 28602081 DOI: 10.1021/acs.langmuir.7b01330] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The interaction of the cationic organic dye Astrazon orange R (AO-R) with the synthetic phyllosilicate Laponite leads to very interesting hybrid materials. Indeed, the Laponite nanoparticles modify the photophysical properties of AO-R, inducing a stabilization of its excited emissive state by preventing ultrafast isomerization. The long-lived emissive clay-dye hybrid complex can be used to develop efficient photoinitiating systems, leading to organic-inorganic hybrid crosslinked polymer materials.
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Affiliation(s)
- Christian Ley
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires and ‡Institut de Science des Matériaux de Mulhouse, CNRS-UMR7361, Université de Haute-Alsace , 3b rue Alfred Werner, 68093 Mulhouse Cedex, France
| | - Jocelyne Brendlé
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires and ‡Institut de Science des Matériaux de Mulhouse, CNRS-UMR7361, Université de Haute-Alsace , 3b rue Alfred Werner, 68093 Mulhouse Cedex, France
| | - Moise Miranda
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires and ‡Institut de Science des Matériaux de Mulhouse, CNRS-UMR7361, Université de Haute-Alsace , 3b rue Alfred Werner, 68093 Mulhouse Cedex, France
| | - Xavier Allonas
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires and ‡Institut de Science des Matériaux de Mulhouse, CNRS-UMR7361, Université de Haute-Alsace , 3b rue Alfred Werner, 68093 Mulhouse Cedex, France
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33
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Miyagawa M, Shibusawa A, Maeda K, Tashiro A, Sugai T, Tanaka H. Diameter-controlled Cu nanoparticles on saponite and preparation of film by using spontaneous phase separation. RSC Adv 2017. [DOI: 10.1039/c7ra08659h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Cu nanoparticles have attracted much attention due to their optical, catalytic, and electrical properties.
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Affiliation(s)
- Masaya Miyagawa
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
| | - Akane Shibusawa
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
| | - Kaho Maeda
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
| | - Akiyoshi Tashiro
- Department of Chemistry
- Faculty of Science
- Toho University
- Funabashi-shi
- Japan
| | - Toshiki Sugai
- Department of Chemistry
- Faculty of Science
- Toho University
- Funabashi-shi
- Japan
| | - Hideki Tanaka
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo
- Japan
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