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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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Lisa John V, Joy F, Jose Kollannoor A, Joseph K, Nair Y, T. P. V. Amine functionalized carbon quantum dots from paper precursors for selective binding and fluorescent labelling applications. J Colloid Interface Sci 2022; 617:730-744. [DOI: 10.1016/j.jcis.2022.03.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 01/14/2023]
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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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Minami H, Itamoto N, Watanabe W, Li Z, Nakamura K, Kobayashi N. Chiroptical property enhancement of chiral Eu(III) complex upon association with DNA-CTMA. Sci Rep 2020; 10:18917. [PMID: 33144619 PMCID: PMC7609531 DOI: 10.1038/s41598-020-75808-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/20/2020] [Indexed: 12/16/2022] Open
Abstract
DNA-based materials have attracted much attention due to their unique photo-functional properties and potential applications in various fields such as luminescent and biological systems, nanodevices, etc. In this study, the photophysical properties of a chiral Eu(III) complex, namely (Eu(D-facam)3), within DNA films were extensively investigated. The enhancement of photoluminescence (more than 25-folds increase of luminescence quantum yield) and degree of circularly polarization in luminescence (glum = − 0.6) was observed upon interaction with DNA. Various photophysical analyses suggested that the emission enhancement was mainly due to an increase of the sensitization efficiency (high ηsens) from the ligands to Eu(III) and suppression of the vibrational deactivation upon immobilization onto the DNA molecule. From CD and VCD measurements, it was suggested that the coordination structure of Eu(D-facam)3 was affected by the interaction with DNA, suggesting that the structural change of Eu(D-facam)3 contributed to the improvement of its luminescent properties.
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Affiliation(s)
- Haruki Minami
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Natsumi Itamoto
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Wataru Watanabe
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Ziying Li
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Kazuki Nakamura
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Norihisa Kobayashi
- Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.
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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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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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Stabilization of cationic zinc phthalocyanine monomers by adsorption on clay nanosheet colloid and photogeneration of singlet oxygen. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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