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Cao J, Sun W, Fan J. Insights into bishemicyanines with long emission wavelengths and high sensitivity in viscous environments. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tian T, Qian T, Sui X, Yu Q, Liu Y, Liu X, Chen Y, Wang YX, Hu W. Aggregation-Dependent Photoreactive Hemicyanine Assembly as a Photobactericide. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22552-22559. [PMID: 32345006 DOI: 10.1021/acsami.0c03894] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Organic materials that show substantial reactivity under visible light have received considerable attention due to their wide applications in chemical and biological systems. Hemicyanine pigments possess a strong intramolecular donor-acceptor structure and thereby display intense absorption in the visible spectral region. However, most excitons are consumed via the twisted intramolecular charge-transfer (TICT) process, making hemicyanines generally inert to light. Herein, we describe the development of an amphiphilic hemicyanine dye whose aggregation could be easily regulated using salt or counterions. More importantly, its intrinsic photoreactivity was successfully induced by steric restriction and cofacial arrangement within the H-aggregate, thus creating an effective photobactericide. This strategy could be extended to the development of photocatalysts for photosynthesis and a photosensitizer for photodynamic therapy.
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Affiliation(s)
- Tian Tian
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Tingjuan Qian
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Xinyu Sui
- Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Qilin Yu
- Department of Microbiology, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yingxin Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Xinfeng Liu
- Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yulan Chen
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Yi-Xuan Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, Fuzhou International Campus, Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, Fuzhou International Campus, Tianjin University, Binhai New City, Fuzhou 350207, China
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Song T, Yu J, Cui Y, Yang Y, Qian G. Encapsulation of dyes in metal–organic frameworks and their tunable nonlinear optical properties. Dalton Trans 2016; 45:4218-23. [DOI: 10.1039/c5dt03466c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Two series of cationic dyes have been encapsulated in the 1D channel of MOFs, and the tunable second order nonlinear optical properties of these MOF⊃dye materials were observed.
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Affiliation(s)
- Tao Song
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
| | - Jiancan Yu
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
| | - Yuanjing Cui
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
| | - Yu Yang
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
| | - Guodong Qian
- State Key Laboratory of Silicon Materials
- Cyrus Tang Center for Sensor Materials and Applications
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou
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Sprung C, Weckhuysen BM. Differences in the location of guest molecules within zeolite pores as revealed by multilaser excitation confocal fluorescence microscopy: which molecule is where? J Am Chem Soc 2015; 137:1916-28. [PMID: 25590519 PMCID: PMC4435783 DOI: 10.1021/ja511381f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 01/18/2023]
Abstract
A detailed and systematic polarized confocal fluorescence microscopy investigation is presented on three batches of large coffin-shaped ZSM-5 crystals (i.e., parent, steamed at 500 °C, and steamed at 700 °C). In total, six laser lines of different wavelength in the visible region are employed on two crystal positions and three orientations with respect to the polarization plane of the excitation laser light. A fluorescent probe molecule is generated inside the zeolite pores, originating from the acid-catalyzed oligomerization of 4-fluorostyrene. A thorough analysis of the polarization plane of emitting fluorescent light reveals insight into the orientation of the fluorescent probe molecule restricted by the highly ordered zeolite channel framework, thereby visualizing pore accessibility and clearly distinguishing the occupation of straight and sinusoidal channels by the probe molecule. Spectral features are, furthermore, observed to tell apart molecules situated in one or the other pore. Special focus was given on the rim and tip regions of the zeolite ZSM-5 crystals. On the basis of the confocal approach of the investigation, the aforementioned features are evaluated in three dimensions, while the degradation of the zeolite framework upon postsynthesis steam treatment could be visualized by occupation of the sinusoidal pores.
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Affiliation(s)
- Christoph Sprung
- Inorganic Chemistry and Catalysis,
Department of Chemistry, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis,
Department of Chemistry, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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Epelde-Elezcano N, Duque-Redondo E, Martínez-Martínez V, Manzano H, López-Arbeloa I. Preparation, photophysical characterization, and modeling of LDS722/Laponite 2D-ordered hybrid films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10112-10117. [PMID: 25087605 DOI: 10.1021/la502081c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel hybrid material with promising optical properties for nonlinear optical applications is presented, as formed by LDS 722 organic dye confined in Laponite clay. Thin films of the hybrid material with different dye loadings have been prepared. The film thickness, the dye and water content, and the clay swelling due to guest molecule incorporation have been characterized. Then, the photophysical properties of the thin films have been studied in detail using experimental methods and molecular simulation. As the dye load increases, the hybrid films present a hypsochromic shift in absorption and a bathochromic shift in emission. The former is attributed to the increasing strength of solvation of the dye donor group, while the latter is ascribed to a switch from an intramolecular to an intermolecular charge-transfer process as the dye load increases. The LDS 722 molecules are preferentially oriented in the host clay almost in parallel to the platelet surfaces, inducing macroscopic order that makes the material responsive to polarized light.
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Affiliation(s)
- Nerea Epelde-Elezcano
- Molecular Spectroscopy Laboratory, University of the Basque Country UPV/EHU , Apartado 644, 48080 Bilbao, Spain
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Lee Y, Lee M. Volume increment effect on the photoisomerization of hemicyanine dyes in oligo(ethylene glycol)s. J Phys Chem A 2013; 117:12878-83. [PMID: 24266422 DOI: 10.1021/jp4101043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We studied the excited-state dynamics of three hemicyanine dyes that undergo internal twisting from the localized excited state to the twisted intramolecular charge-transfer state. The dyes differ in the length of the alkyl chain in the aniline moiety and, thus, the volume of the motional moiety increases without having much of an effect on the excited-state potential surface. By employing oligo(ethylene glycol)s as a new homologous series of solvents that covers a high viscosity region, we showed that the excited-state lifetime of the hemicyanines gradually increases at any given viscosity when the size of the substituent increases. We describe our results for the solution-phase photoisomerization processes in terms of the breakdown of Stokes' law, multidimensionality, and the Hubbard relation.
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Affiliation(s)
- Youmin Lee
- Department of Chemistry and Nanoscience, Ewha Womans University , Seoul 120-750, Republic of Korea
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Martínez-Martínez V, García R, Gómez-Hortigüela L, Pérez-Pariente J, López-Arbeloa I. Modulating Dye Aggregation by Incorporation into 1D-MgAPO Nanochannels. Chemistry 2013; 19:9859-65. [DOI: 10.1002/chem.201301285] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Indexed: 02/02/2023]
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Cao J, Hu C, Liu F, Sun W, Fan J, Song F, Sun S, Peng X. Mechanism and Nature of the Different Viscosity Sensitivities of Hemicyanine Dyes with Various Heterocycles. Chemphyschem 2013; 14:1601-8. [DOI: 10.1002/cphc.201300049] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Indexed: 01/02/2023]
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Shim TK, Lee MH, Kim D, Kim HS, Yoon KB. Fluorescence Characteristics of Isolated Dye Molecules within Silicalite-1 Channels. J Fluoresc 2012; 22:1475-82. [DOI: 10.1007/s10895-012-1084-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Accepted: 06/20/2012] [Indexed: 11/28/2022]
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Photoprocesses of coordination compounds and dyes in solution and nanoporous materials: Evolution from milliseconds to femtoseconds#. J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0129-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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López-Duarte I, Le-Quyenh Dieu, Dolamic I, Martínez-Díaz MV, Torres T, Calzaferri G, Brühwiler D. On the Significance of the Anchoring Group in the Design of Antenna Materials Based on Phthalocyanine Stopcocks and Zeolite L. Chemistry 2010; 17:1855-62. [DOI: 10.1002/chem.201002210] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Indexed: 11/08/2022]
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Shiraishi Y, Inoue T, Hirai T. Local viscosity analysis of triblock copolymer micelle with cyanine dyes as a fluorescent probe. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17505-17512. [PMID: 20942435 DOI: 10.1021/la1028993] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The local viscosity of Pluronic F127 triblock copolymer micelles in water was determined with cyanine dyes as fluorescent probes. These dyes show very weak fluorescence at a low temperature, but show enhanced fluorescence at a temperature higher than the critical micellization temperature (T(cm)). This is because a viscous environment within the micelle suppresses the formation of a nonradiative twisted intramolecular charge transfer (TICT) excited state of the dyes. The good correlation between the fluorescence quantum yields of the dyes and the viscosity and the temperature of the media allows a determination of local viscosity of micelle based on the fluorescence quantum yields. The local viscosity of both core and corona regions of micelles increases at >T(cm) and shows a maximum at a temperature 7-9 °C higher than T(cm), and decreases at higher temperature due to the increased fluidity. The core viscosity is larger than that of the corona, and the corona viscosity increases toward the micelle center. The polymer concentration has different effects on the core and corona viscosity: the corona viscosity increases with a polymer concentration increase at the entire temperature range, whereas the core viscosity increases only at a low temperature. The corona viscosity increase is due to the condensation of a large number of polyethylene oxide (PEO) blocks. In contrast, the dehydration degree of polypropylene oxide (PPO) blocks in the core scarcely changes, and the core has a similar composition regardless of polymer concentration. The larger polymer concentration promotes a micelle formation at lower temperature where the fluidity increase is very weak, resulting in larger core viscosity.
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Affiliation(s)
- Yasuhiro Shiraishi
- Research Center for Solar Energy Chemistry and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan.
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