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Ferrer MB, Harada D, Martin CJ, Métivier R, Allain C, Nakatani K, Louis M, Kawaguchi N, Yanagida T, Yasuhara K, Kawai T. Cascade Fluorescence Modulation in Photochromic Microcapsules. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39319449 DOI: 10.1021/acsami.4c09023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2024]
Abstract
Certain derivatives of terarylene are able to undergo a highly efficient oxidative cycloreversion cascade effect, a ring opening reaction with quantum yields above unity, resulting in a colored-to-colorless transition in solution. In the presence of chloroform, high-energy UV and X-rays can trigger this phenomenon, potentially acting as a visual detection system for ionizing radiation. However, chloroform is sensitive to different irradiation wavelengths without distinction, making it difficult to adapt to a reusable device. Chlorobenzene was chosen as an alternative halogenated solvent, as it offers wavelength selectivity between photocyclization and cascade effect cycloreversion. Nile Red was also incorporated into the system with the aim of improving the sensitivity of the visual detection via fluorescence photoswitching. Finally, microencapsulation of both terarylene and Nile Red was targeted to obtain both the cascade effect and photoswitching in a single system. In microcapsules made from a Pickering emulsion, this terarylene-Nile Red system showed high fatigue resistance to repeated photocyclization and cycloreversion irradiation, giving access to repeated ON/OFF fluorescence photoswitching. The cascade effect was also successfully demonstrated along with fluorescence recovery, showing the versatility of the two phenomena in different media.
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Affiliation(s)
- Magin Benedict Ferrer
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, Gif-sur-Yvette 91190, France
| | - Daiyu Harada
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Colin J Martin
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Rémi Métivier
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, Gif-sur-Yvette 91190, France
| | - Clémence Allain
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, Gif-sur-Yvette 91190, France
| | - Keitaro Nakatani
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, PPSM, Gif-sur-Yvette 91190, France
| | - Marine Louis
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Noriaki Kawaguchi
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Takayuki Yanagida
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Kazuma Yasuhara
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Tsuyoshi Kawai
- Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- Medilux Resaerch Center, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
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Li SL, Li KJ, Shen Y, Wang YJ, Yang W, Qu M, Qi Z, Zhang J, Zhang XM. Selective Photochromic Response to Low-Dose X-ray Radiation Detection in One-Dimensional Cadmium-Viologen Complexes. Inorg Chem 2023; 62:4990-4998. [PMID: 36921355 DOI: 10.1021/acs.inorgchem.3c00170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Photochromic viologen-based materials have emerged as one of the most promising candidates for the development of X-ray light detection applications, including medical diagnosis and treatment, environmental radiation inspection, and industrial crack detection. However, the design and construction of low-dose X-ray-sensitive complexes remains an immense challenge, especially for the in-depth dissection of their response mechanisms. Herein, by using N,N'-4,4'-bipyridiniodipropionate (CV) as functional sensitive structural units and cadmium as heavy atoms, two cadmium-viologen complexes with one-dimensional chained structures, namely, [Cd2Cl4(CV)(H2O)2]n (1) and [CdBr2(CV)]n (2), have been constructed, which exhibit a remarkable and selective photochromic response to low-dose X-ray radiation detection. Compound 1 is visually sensitive to both X-ray and UV light due to the more accessible photoinduced electron transfer (ET) pathways, while compound 2 only shows a slight color-changing process in response to UV light, in conformity with UV-vis absorbance analyses and kinetic studies. Surprisingly, compound 2 has longer ET pathways than 1, but not in response to high-energy X-ray light, seeming to contradict the previous phenomena. On further analysis, the key point in achieving X-ray-sensitive behavior should be a good balance among the electron donor-acceptor distance, intermolecular interaction, and X-ray absorbing capacity, as verified by density functional theory (DFT) and X-ray absorption strength calculations, X-ray photoelectron spectra, electron paramagnetic resonance measurements, and independent gradient model analysis. In particular, compound 1 is unprecedentedly sensitive to soft X-ray radiation, accompanied by an X-ray detection limit of as low as 2.91 Gy. These findings push forward the further development of low-dose X-ray sensing materials.
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Affiliation(s)
- Shi-Li Li
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Kang-Jing Li
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Yuan Shen
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Yu-Jie Wang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Wen Yang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Mei Qu
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Zhikai Qi
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Jian Zhang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China
| | - Xian-Ming Zhang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, Taiyuan 030032, China.,Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030032, P. R. China.,School of Chemistry, Taiyuan University of Technology, Taiyuan 030024, P. R. China
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Excitation wavelength- and intensity-dependent stepwise two-photon-induced photochromic reaction. Photochem Photobiol Sci 2022; 21:1445-1458. [PMID: 35527290 DOI: 10.1007/s43630-022-00234-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/13/2022] [Indexed: 10/18/2022]
Abstract
The photochromic molecules showing wavelength-selective or light intensity-dependent photoresponse are receiving increased attention in recent years. Although a photoswitch with a single chromophore can control the ON and OFF states of a function, that consisting of multi-chromophores would be useful for the specific control in complex systems. Herein, we designed stepwise two-photon induced photochromic molecules (PABI-PIC and PABI-PIC2) consisting of two different photochromic units (PABI and PIC). One-photon absorption reaction in the UV light region of PABI-PIC generates the short-lived transient biradical (BR) that absorbs an additional photon in the visible and UV light region in a stepwise manner to produce the two-photon photochemical product, the quinoidal species (Quinoid). The photochromic properties of these transient species are completely different in color and fading speed. In addition, PABI-PIC also shows the excitation wavelength-dependent photochromism because the excited states of the PABI and PIC units are electronically orthogonal. Therefore, the stepwise photochromic properties of PABI-PIC are easily controlled depending on the excitation light intensity and wavelength. These molecular designs are important for the development of advanced photoresponsive materials.
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Asato R, Martin CJ, Nakashima T, Calupitan JP, Rapenne G, Kawai T. Energy Storage upon Photochromic 6-π Photocyclization and Efficient On-Demand Heat Release with Oxidation Stimuli. J Phys Chem Lett 2021; 12:11391-11398. [PMID: 34787418 DOI: 10.1021/acs.jpclett.1c03052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Photochromic molecules display reversible isomerization reactions between two isomers accompanied by an exchange between heat and chemical potential. A considerable part of the absorbed light energy is stored in and released from the present E-type photochromic molecules, which undergo cyclization reactions under UV light excitation and backward reactions after application of oxidative stimuli. The photochromic nature, thermal stability, and cascade ring-opening reaction of the closed form isomers of eight photochromic terarylenes are studied, and energy storage efficiencies at a single wavelength, η, as high as 23% are experimentally demonstrated. Their efficient photochemical quantum yield for the cyclization reaction markedly contributes to the high energy storage efficiency as well as showing the capability of efficient cascade cycloreversion reactions. Spontaneous cycloreversion reactions are well-suppressed because the forbidden nature of the cycloreversion reaction gives rise to sufficient heat storage duration.
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Affiliation(s)
- Ryosuke Asato
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- International Collaborative Laboratory for Supraphotoactive Systems, NAIST-CEMES, CNRS UPR 8011, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex 4, France
| | - Colin J Martin
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- International Collaborative Laboratory for Supraphotoactive Systems, NAIST-CEMES, CNRS UPR 8011, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex 4, France
| | - Takuya Nakashima
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Jan Patrick Calupitan
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- International Collaborative Laboratory for Supraphotoactive Systems, NAIST-CEMES, CNRS UPR 8011, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex 4, France
| | - Gwénaël Rapenne
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- International Collaborative Laboratory for Supraphotoactive Systems, NAIST-CEMES, CNRS UPR 8011, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex 4, France
- CEMES, Université de Toulouse, CNRS, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex 4, France
| | - Tsuyoshi Kawai
- Division of Materials Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, NAIST, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- International Collaborative Laboratory for Supraphotoactive Systems, NAIST-CEMES, CNRS UPR 8011, 29 rue Jeanne Marvig, F-31055 Toulouse Cedex 4, France
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Systematic studies of structural variations in terarylene photohydride generators. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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