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Zhao J, Yu R, Wu L, Li Y, Liu W, Yang Y. A PSCLC Pattern Prepared Based on Handedness Inversion for Anti-counterfeiting. Chem Asian J 2023; 18:e202300636. [PMID: 37606182 DOI: 10.1002/asia.202300636] [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: 07/20/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 08/23/2023]
Abstract
Handedness inversion has been widely studied in supramolecular chemistry and material sciences. Herein, a photoisomerizable chiral dopant was synthesized, which could induce the formation of a cholesteric phase with right-handedness. The Bragg reflection band of the cholesteric liquid crystal (CLC) mixture shifted to the long wavelength with extending 365 nm UV light irradiation time. Based on this photochromic property, a colourful polymer-stabilized CLC (PSCLC) film was prepared using a grayscale mask. A handedness reversible CLC mixture was prepared using a mixture of this chiral dopant and S5011. With extending the UV light irradiation time, the handedness of the CLC mixture changed from right- to left-handedness. A patterned PSCLC film was prepared using this CLC mixture. Complementary images were observed under right- and left-handedness circularly polarized lights. The results shown here not only give us a better understanding the competition between photopolymerization and photoisomerization, but also lay the foundations for decoration and anti-counterfeiting.
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Affiliation(s)
- Jinghua Zhao
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Runwei Yu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Limin Wu
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu Province, P. R. China
| | - Yi Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Wei Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yonggang Yang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
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2
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Lin S, Zeng S, Li Z, Fan Q, Guo J. Turn-On Mode Circularly Polarized Luminescence in Self-Organized Cholesteric Superstructure for Active Photonic Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:30362-30370. [PMID: 35758230 DOI: 10.1021/acsami.2c05678] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Developing circularly polarized luminescence (CPL)-active materials with a large luminescence dissymmetry factor (glum) or stimulus responses has evoked a lot of interest in the past few years; however, the light-controllable "on/off" CPL still remains a challenge. Here, a novel diarylethene-based chiral fluorescent photoswitch featuring "turn-on" CPL characteristic is developed, designated as (S,S)-switch 6, which can undergo reversible photocyclization/cycloreversion upon irradiation with UV and visible light. (S,S)-Switch 6 shows completely reversible "off-on-off"-responsive CPL behavior in solution. By doping (S,S)-switch 6 into nematic liquid crystals (LCs), the consequent luminescent cholesteric LCs (CLCs) exhibit a larger glum value enhanced 2 orders of magnitude when irradiated with UV light, which can be attributed to the highly ordered helical arrangement of CLCs. The potentials of this turn-on type CPL material for anticounterfeiting and information encryption are illustrated. Furthermore, the visualization of circularly polarized (CP) fluorescent patterns can be successfully achieved by constructing the double-layer CPL system consisting of a CP luminescent layer and a polymer cholesteric reflective layer. The proposed concept establishes a light-controlled off-on-off CPL platform that is of tremendous potential for applications in multi-informational data storage and encryption devices.
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Affiliation(s)
- Siyang Lin
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shuangshuang Zeng
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ziyuan Li
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qingyan Fan
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jinbao Guo
- Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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3
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Wilcke T, Postole A, Krüsmann M, Karg M, Müller TJJ. Amphipolar, Amphiphilic 2,4-diarylpyrano[2,3- b]indoles as Turn-ON Luminophores in Acidic and Basic Media. Molecules 2022; 27:2354. [PMID: 35408766 PMCID: PMC9000430 DOI: 10.3390/molecules27072354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 11/29/2022] Open
Abstract
A versatile amphiphilic pyrano[2,3-b]indole for halochromic turn-ON luminescence in acidic or basic media is accessed by an insertion-coupling-cycloisomerization and adjusting solubilizing and phenolic functionalities. While almost non-emissive in neutral solutions, treatment with acids or bases like trifluoroacetic acid (TFA) or 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) reveals distinct luminescence at wavelengths of 540 nm or 630 nm in propan-2-ol, respectively. Turn-ON emission can be detected at pH values as mild as pH = 5.31 or 8.70. Quantum yields in propan-2-ol are substantial for protonated (Φf = 0.058) and deprotonated (Φf = 0.059) species. Photometrically, pKa1 of 3.5 and pKa2 of 10.5 were determined in propan-2-ol. With lipophilic polyether sidechains and hydrophilic protonation and deprotonation sites the molecule can be regarded as amphipolar, which results in good solubility properties for different organic solvents. In aqueous media, an organic co-solvent like propan-2-ol (35%) or tetrahydrofuran (25%) is needed, and the solution can be diluted with pure water without precipitation of the compound. At higher concentrations of water, a turbid solution is formed, which indicates the formation of micellar structures or clusters. With dynamic light scattering we could show that these clusters increase in size with increasing water content.
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Affiliation(s)
- Tobias Wilcke
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany; (T.W.); (A.P.)
| | - Alexandru Postole
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany; (T.W.); (A.P.)
| | - Marcel Krüsmann
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany; (M.K.); (M.K.)
| | - Matthias Karg
- Institut für Physikalische Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany; (M.K.); (M.K.)
| | - Thomas J. J. Müller
- Institut für Organische Chemie und Makromolekulare Chemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany; (T.W.); (A.P.)
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4
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Wang Y, Xiang S, Tan B. Application in Drugs and Materials. AXIALLY CHIRAL COMPOUNDS 2021:297-315. [DOI: 10.1002/9783527825172.ch11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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5
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Wang L, Urbas AM, Li Q. Nature-Inspired Emerging Chiral Liquid Crystal Nanostructures: From Molecular Self-Assembly to DNA Mesophase and Nanocolloids. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1801335. [PMID: 30160812 DOI: 10.1002/adma.201801335] [Citation(s) in RCA: 157] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/17/2018] [Indexed: 05/22/2023]
Abstract
Liquid crystals (LCs) are omnipresent in living matter, whose chirality is an elegant and distinct feature in certain plant tissues, the cuticles of crabs, beetles, arthropods, and beyond. Taking inspiration from nature, researchers have recently devoted extensive efforts toward developing chiral liquid crystalline materials with self-organized nanostructures and exploring their potential applications in diverse fields ranging from dynamic photonics to energy and safety issues. In this review, an account on the state of the art of emerging chiral liquid crystalline nanostructured materials and their technological applications is provided. First, an overview on the significance of chiral liquid crystalline architectures in various living systems is given. Then, the recent significant progress in different chiral liquid crystalline systems including thermotropic LCs (cholesteric LCs, cubic blue phases, achiral bent-core LCs, etc.) and lyotropic LCs (DNA LCs, nanocellulose LCs, and graphene oxide LCs) is showcased. The review concludes with a perspective on the future scope, opportunities, and challenges in these truly advanced functional soft materials and their promising applications.
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Affiliation(s)
- Ling Wang
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH, 44242, USA
| | - Augustine M Urbas
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, 45433, USA
| | - Quan Li
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH, 44242, USA
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Zheng ZG, Lu YQ, Li Q. Photoprogrammable Mesogenic Soft Helical Architectures: A Promising Avenue toward Future Chiro-Optics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905318. [PMID: 32483915 DOI: 10.1002/adma.201905318] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
Mesogenic soft materials, having single or multiple mesogen moieties per molecule, commonly exhibit typical self-organization characteristics, which promotes the formation of elegant helical superstructures or supramolecular assemblies in chiral environments. Such helical superstructures play key roles in the propagation of circularly polarized light and display optical properties with prominent handedness, that is, chiro-optical properties. The leveraging of light to program the chiro-optical properties of such mesogenic helical soft materials by homogeneously dispersing photosensitive chiral material into an achiral soft system or covalently connecting photochromic moieties to the molecules has attracted considerable attention in terms of materials, properties, and potential applications and has been a thriving topic in both fundamental science and application engineering. State-of-the-art technologies are described in terms of the material design, synthesis, properties, and modulation of photoprogrammable chiro-optical mesogenic soft helical architectures. Additionally, the scientific issues and technical problems that hinder further development of these materials for use in various fields are outlined and discussed. Such photoprogrammable mesogenic soft helical materials are competitive candidates for use in stimulus-controllable chiro-optical devices with high optical efficiency, stable optical properties, and easy miniaturization, facilitating the future integration and systemization of chiro-optical chips in photonics, photochemistry, biomedical engineering, chemical engineering, and beyond.
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Affiliation(s)
- Zhi-Gang Zheng
- Department of Physics, East China University of Science and Technology, Shanghai, 200237, China
| | - Yan-Qing Lu
- National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Quan Li
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH, 44242, USA
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7
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Ahuja S, Iyer A, Kandappa SK, Sivaguru J. Photo-auxiliary approach to control excited state reactivity: Cross [2+2]-photocycloaddition of oxazolidinone based hydrazides. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111883] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Kim Y, Tamaoki N. Photoresponsive Chiral Dopants: Light‐Driven Helicity Manipulation in Cholesteric Liquid Crystals for Optical and Mechanical Functions. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900034] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuna Kim
- Research Institute for Electronic ScienceHokkaido University N-20, W-10, Kita-Ku, Sapporo Hokkaido 001-0020 JAPAN
| | - Nobuyuki Tamaoki
- Research Institute for Electronic ScienceHokkaido University N-20, W-10, Kita-Ku, Sapporo Hokkaido 001-0020 JAPAN
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9
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Moran MJ, Magrini M, Walba DM, Aprahamian I. Driving a Liquid Crystal Phase Transition Using a Photochromic Hydrazone. J Am Chem Soc 2018; 140:13623-13627. [DOI: 10.1021/jacs.8b09622] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Mark J. Moran
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Mitchell Magrini
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - David M. Walba
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Ivan Aprahamian
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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10
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Wang N, Wang R, Tu Y, Pu S, Liu G. A novel fluorescence "turn-on" sensor based on a photochromic diarylethene for the selective detection of Al(III). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:303-310. [PMID: 29462771 DOI: 10.1016/j.saa.2018.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 09/18/2017] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
A novel photochromic diarylethene with a triazole-containing 2-(2'-phenoxymethyl)-benzothiazole group has been synthesized via "click" reaction. The diarylethene exhibited good photochromism and photoswitchable fluorescence. Its fluorescence emission intensity was enhanced 7-fold by acids, accompanied by the red-shift of emission peak from 526nm to 566nm and the concomitant color change from dark to bright flavogreen. The diarylethene selectively formed a 1:1 metal complex with Al3+, resulting in a "turn-on" fluorescence signal. The complexation - reaction between Al3+ and the diarylethene is reversible with the binding constant of 2.73×103Lmol-1. The limit of detection (LOD) of Al3+ was determined to be 5.94×10-8molL-1. Based on this unimolecular platform, a logic circuit was fabricated using the fluorescence emission intensity at 572nm as the output and the combined stimuli of Al3+/EDTA and UV/Vis as the inputs.
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Affiliation(s)
- Niansheng Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China
| | - Renjie Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China; College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, PR China.
| | - Yayi Tu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China; College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, PR China.
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, PR China
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11
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Previtali V, Trujillo C, Amet R, Zisterer DM, Rozas I. Effect of isouronium/guanidinium substitution on the efficacy of a series of novel anti-cancer agents. MEDCHEMCOMM 2018; 9:735-743. [PMID: 30108964 DOI: 10.1039/c8md00089a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 03/19/2018] [Indexed: 12/30/2022]
Abstract
Considering our hypothesis that the guanidinium moiety in the protein kinase type III inhibitor 1 interacts with a phosphate of ATP within the hinge region, the nature of the interactions established between a model isouronium and the phosphate groups of ATP was computationally analysed indicating that an isouronium derivative of 1 will interact in a similar manner with ATP. Thus, a number of compounds were prepared to assess the effect of the guanidinium/isouronium substitution on cancer cell growth; additionally, the molecular shortening and conformational change induced by replacing the di-substituted guanidine-linker of 1 by an amide was explored. The effect of these compounds on cell viability was tested in human leukaemia, breast cancer and cervical cancer cell lines and the resulting IC50 values were compared with those of the lead compound 1. Replacement of the di-substituted guanidine-linker by an amide results in the loss of cytotoxicity; however, substitution of the mono-substituted guanidinium by an isouronium cation seems to be beneficial for cell growth inhibition. Additionally, the effect of these compounds on the MAPK/ERK pathway was studied by means of Western blotting and the results indicate that the isouronium derivative 2 decreases the levels of phosphorylated, and thus activated, ERK (pERK) both in leukaemia and breast cancer cells, whereas lead compound 1 only shows an effect on pERK levels in breast cancer cells. This confirms that both compounds could interfere with the MAPK/ERK pathway although other targets cannot be ruled out.
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Affiliation(s)
- Viola Previtali
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , 152-160 Pearse Street , Dublin 2 , Ireland .
| | - Cristina Trujillo
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , 152-160 Pearse Street , Dublin 2 , Ireland .
| | - Rebecca Amet
- School of Biochemistry and Immunology , Trinity Biomedical Sciences Institute , Trinity College Dublin , 152-160 Pearse Street , Dublin 2 , Ireland
| | - Daniela M Zisterer
- School of Biochemistry and Immunology , Trinity Biomedical Sciences Institute , Trinity College Dublin , 152-160 Pearse Street , Dublin 2 , Ireland
| | - Isabel Rozas
- School of Chemistry , Trinity Biomedical Sciences Institute , Trinity College Dublin , 152-160 Pearse Street , Dublin 2 , Ireland .
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12
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Liu P, Liu H, Liu G, Zhang Z, Xu F, Pu S. Photochromism of new unsymmetrical diarylethenes with a quinoline moiety. J PHYS ORG CHEM 2017. [DOI: 10.1002/poc.3716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peng Liu
- Jiangxi Key Laboratory of Organic Chemistry; Jiangxi Science and Technology Normal University; Nanchang 330013 China
| | - Hongliang Liu
- Jiangxi Key Laboratory of Organic Chemistry; Jiangxi Science and Technology Normal University; Nanchang 330013 China
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry; Jiangxi Science and Technology Normal University; Nanchang 330013 China
| | - Zhihui Zhang
- Jiangxi Key Laboratory of Organic Chemistry; Jiangxi Science and Technology Normal University; Nanchang 330013 China
| | - Fen Xu
- Jiangxi Key Laboratory of Organic Chemistry; Jiangxi Science and Technology Normal University; Nanchang 330013 China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry; Jiangxi Science and Technology Normal University; Nanchang 330013 China
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13
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Bisoyi HK, Li Q. Light-Driven Liquid Crystalline Materials: From Photo-Induced Phase Transitions and Property Modulations to Applications. Chem Rev 2016; 116:15089-15166. [PMID: 27936632 DOI: 10.1021/acs.chemrev.6b00415] [Citation(s) in RCA: 402] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Light-driven phenomena both in living systems and nonliving materials have enabled truly fascinating and incredible dynamic architectures with terrific forms and functions. Recently, liquid crystalline materials endowed with photoresponsive capability have emerged as enticing systems. In this Review, we focus on the developments of light-driven liquid crystalline materials containing photochromic components over the past decade. Design and synthesis of photochromic liquid crystals (LCs), photoinduced phase transitions in LC, and photoalignment and photoorientation of LCs have been covered. Photomodulation of pitch, polarization, lattice constant and handedness inversion of chiral LCs is discussed. Light-driven phenomena and properties of liquid crystalline polymers, elastomers, and networks have also been analyzed. The applications of photoinduced phase transitions, photoalignment, photomodulation of chiral LCs, and photomobile polymers have been highlighted wherever appropriate. The combination of photochromism, liquid crystallinity, and fabrication techniques has enabled some fascinating functional materials which can be driven by ultraviolet, visible, and infrared light irradiation. Nanoscale particles have been incorporated to widen and diversify the scope of the light-driven liquid crystalline materials. The developed materials possess huge potential for applications in optics, photonics, adaptive materials, nanotechnology, etc. The challenges and opportunities in this area are discussed at the end of the Review.
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Affiliation(s)
- Hari Krishna Bisoyi
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University , Kent, Ohio 44242, United States
| | - Quan Li
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University , Kent, Ohio 44242, United States
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14
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Shi M, Chen J, Shen Z. Synthesis and spectroscopic properties of photochromic dithienylethene-functionalized subphthalocyanine conjugate. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s108842461650067x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A subphthalocyanine-dithienylethene dyad has been synthesized and characterized by 1H-, [Formula: see text]C-NMR, HR-MS, UV-visible and emission spectroscopy. The results show that photoinduced isomerization of dithienylethene moiety from close-form to opened form can be achieved under visible light using subphthalocyanine as a light-harvesting unit and the fluorescence properties of subphthalocyanine could be modulated by the isomerization state of the dithienylethene moiety.
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Affiliation(s)
- Maohu Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing, University, Nanjing 210093, China
| | - Jingzhi Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing, University, Nanjing 210093, China
| | - Zhen Shen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing, University, Nanjing 210093, China
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15
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Clay A, Vallavoju N, Krishnan R, Ugrinov A, Sivaguru J. Metal-Free Visible Light-Mediated Photocatalysis: Controlling Intramolecular [2 + 2] Photocycloaddition of Enones through Axial Chirality. J Org Chem 2016; 81:7191-200. [DOI: 10.1021/acs.joc.6b01066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anthony Clay
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Nandini Vallavoju
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Retheesh Krishnan
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Angel Ugrinov
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Jayaraman Sivaguru
- Department of Chemistry and
Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
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16
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Affiliation(s)
- Ha T. M. Le
- Department of Chemistry, University of Houston, 112 Fleming
Building, Houston, Texas 77204-5003, United States
| | - Nadia S. El-Hamdi
- Department of Chemistry, University of Houston, 112 Fleming
Building, Houston, Texas 77204-5003, United States
| | - Ognjen Š. Miljanić
- Department of Chemistry, University of Houston, 112 Fleming
Building, Houston, Texas 77204-5003, United States
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17
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Kim DY, Lee SA, Park M, Choi YJ, Kang SW, Jeong KU. Multi-responsible chameleon molecule with chiral naphthyl and azobenzene moieties. SOFT MATTER 2015; 11:2924-2933. [PMID: 25742914 DOI: 10.1039/c5sm00073d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A photochromic chiral molecule with azobenzene mesogens and a (R)-configuration naphthyl moiety (abbreviated as NCA2M) was specifically designed and synthesized for the demonstration of chameleon-like color changes responding to multitudinous external stimuli, such as temperature, light and electric field. The basic phase transition behaviors of NCA2M were first studied by the combination of differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Based on the structure-sensitive X-ray diffraction results obtained at different temperatures, it was comprehended that the NCA2M molecule exhibited the tilted version of highly ordered smectic crystal phase with 5.45 nm layer thickness. Chiral nematic (N*) liquid crystals (LC) with helical superstructures were formed by doping the NCA2M photochromic chiral molecule in an achiral nematic (N) LC medium. By controlling the helical pitch length of N*-LC with respect to temperature, light and electric field, the wavelength of selectively reflected light from the N* photonic crystal was finely tuned. The light-induced color change of N*-LC film was the most efficient method for covering the whole visible region from blue to green and to red, which allowed us to fabricate remote-controllable photo-responsive devices.
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Affiliation(s)
- Dae-Yoon Kim
- Polymer Materials Fusion Research Center & Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea.
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18
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Jin O, Fu D, Ge Y, Wei J, Guo J. Hydrogen-bonded chiral molecular switches: photo- and thermally-reversible switchable full range color in the self-organized helical superstructure. NEW J CHEM 2015. [DOI: 10.1039/c4nj01538j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New kinds of hydrogen-bonded chiral molecular switches and dual photo/thermo-responsive behavior of self-organized helical superstructure based on them were described.
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Affiliation(s)
- Ouyu Jin
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Dengwei Fu
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yixiu Ge
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Jie Wei
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Jinbao Guo
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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19
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Tamura K, Yoshida J, Taniguchi M, Kitazawa T, Yamagishi A, Sato H. Effects of auxiliary ligands of Pd(ii) dimers on induction of chiral nematic phases: chirality inversion and the photo-responsive structural change. Dalton Trans 2015; 44:3209-15. [DOI: 10.1039/c4dt02812k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An axially chiral Pd(ii) dimer changed its CD spectrum reversibly under irradiation at either 350 nm or 460 nm when it was doped in liquid crystals.
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Affiliation(s)
- Kenji Tamura
- National Institute of Materials Science
- Tsukuba 305-0044
- Japan
| | - Jun Yoshida
- Department of Chemistry
- School of Science
- Kitasato University
- Sagamihara
- Japan
| | | | - Takafumi Kitazawa
- Department of Chemistry
- Toho University
- Funabashi, Chiba 274-8510
- Japan
| | - Akihiko Yamagishi
- Department of Chemistry
- Toho University
- Funabashi, Chiba 274-8510
- Japan
| | - Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
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20
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Bisoyi HK, Li Q. Light-directing chiral liquid crystal nanostructures: from 1D to 3D. Acc Chem Res 2014; 47:3184-95. [PMID: 25181560 DOI: 10.1021/ar500249k] [Citation(s) in RCA: 209] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Endowing external, remote, and dynamic control to self-organized superstructures with desired functionalities is a principal driving force in the bottom-up nanofabrication of molecular devices. Light-driven chiral molecular switches or motors in liquid crystal (LC) media capable of self-organizing into optically tunable one-dimensional (1D) and three-dimensional (3D) superstructures represent such an elegant system. As a consequence, photoresponsive cholesteric LCs (CLCs), i.e., self-organized 1D helical superstructures, and LC blue phases (BPs), i.e., self-organized 3D periodic cubic lattices, are emerging as a new generation of multifunctional supramolecular 1D and 3D photonic materials in their own right because of their fundamental academic interest and technological significance. These smart stimuli-responsive materials can be facilely fabricated from achiral LC hosts by the addition of a small amount of a light-driven chiral molecular switch or motor. The photoresponsiveness of these materials is a result of both molecular interaction and geometry changes in the chiral molecular switch upon light irradiation. The doped photoresponsive CLCs undergo light-driven pitch modulation and/or helix inversion, which has many applications in color filters, polarizers, all-optical displays, optical lasers, sensors, energy-saving smart devices, and so on. Recently, we have conceptualized and rationally synthesized different light-driven chiral molecular switches that have very high helical twisting powers (HTPs) and exhibit large changes in HTP in different states, thereby enabling wide phototunability of the systems by the addition of very small amounts of the molecular switches into commercially available achiral LCs. The light-driven chiral molecular switches are based on well-recognized azobenzene, dithienylcyclopentene, and spirooxazine derivatives. We have demonstrated high-resolution and lightweight photoaddressable displays without patterned electronics on flexible substrates. The wide tunability of the HTP furnishes reflection colors encompassing the whole visible spectrum and beyond in a reversible manner. Photomodulation of the helical pitch of the CLCs has been achieved by UV, visible, and near-infrared (NIR) light irradiation. NIR-light-induced red, green, and blue (RGB) reflections have been leveraged only by varying the power density of the IR laser. Some chiral switches are found to confer helix inversion to the cholesteric systems, which qualifies the CLCs for applications where circularly polarized light is involved. Dynamic and static primary RGB reflection colors have been achieved in a single film. LC BPs have been fabricated and investigated in the context of self-organized 3D photonic band gap (PBG) materials, and dynamic phototuning of the PBG over the visible region has been achieved. Omnidirectional lasing and tuning of the laser emission wavelength have also been attained in monodisperse photoresponsive CLC microshells fabricated by a capillary-based microfluidic technique. This Account covers the research and development in our laboratory starting from the design concepts and synthesis of photodynamic chiral molecular switches to their applications in the fabrication of photoresponsive CLCs and BPs. Potential and demonstrated practical applications of photoresponsive CLCs, microshells, and BPs are discussed, and the Account concludes with a brief forecast of what lies beyond the horizon in this rapidly expanding and fascinating field.
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Affiliation(s)
- Hari Krishna Bisoyi
- Liquid Crystal
Institute
and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, United States
| | - Quan Li
- Liquid Crystal
Institute
and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, United States
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21
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Li Y, Wang M, Wang H, Urbas A, Li Q. Rationally Designed Axially Chiral Diarylethene Switches with High Helical Twisting Power. Chemistry 2014; 20:16286-92. [DOI: 10.1002/chem.201403705] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/10/2014] [Indexed: 11/10/2022]
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22
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Mosquera Á, Férnandez MI, Canle Lopez M, Pérez Sestelo J, Sarandeses LA. Nonsymmetrical 3,4-Dithienylmaleimides by Cross-Coupling Reactions with Indium Organometallics: Synthesis and Photochemical Studies. Chemistry 2014; 20:14524-30. [DOI: 10.1002/chem.201403736] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Indexed: 12/16/2022]
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23
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Zhang C, Wang D, He J, Liang T, Hu GH, Dang ZM. Synthesis and dielectric properties of novel liquid crystalline triblock copolymers with cyanobiphenyl moieties and poly(n-butyl acrylate) segments. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3326] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cuihong Zhang
- Department of Polymer Science and Engineering, School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing 100083 People's Republic of China
| | - Dongrui Wang
- Department of Polymer Science and Engineering, School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing 100083 People's Republic of China
| | - Jin He
- Department of Polymer Science and Engineering, School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing 100083 People's Republic of China
| | - Tao Liang
- Department of Polymer Science and Engineering, School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing 100083 People's Republic of China
| | - Guo-Hua Hu
- Laboratory of Reactions and Process Engineering; CNRS - University of Lorraine, LRGP-ENSIC; 1 rue Grandville, BP 20451 54001 Nancy France
| | - Zhi-Min Dang
- Department of Polymer Science and Engineering, School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing 100083 People's Republic of China
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24
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Zhang C, Wang D, He J, Liu M, Hu GH, Dang ZM. Synthesis, nanostructures and dielectric properties of novel liquid crystalline block copolymers. Polym Chem 2014. [DOI: 10.1039/c3py01522j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Li Y, Xue C, Wang M, Urbas A, Li Q. Photodynamic chiral molecular switches with thermal stability: from reflection wavelength tuning to handedness inversion of self-organized helical superstructures. Angew Chem Int Ed Engl 2013; 52:13703-7. [PMID: 24150899 DOI: 10.1002/anie.201306396] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Indexed: 11/10/2022]
Abstract
A good turn: Three compounds that bear two axially chiral bridged binaphthyl units were developed as photodynamic chiral dopants for nematic liquid crystals. For compounds with suitable bridge lengths, a change in the dihedral angle induced a switch of the binaphthyl units from the cisoid to the transoid form upon UV irradiation, which led to an inversion of the handedness of the helices.
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Affiliation(s)
- Yannian Li
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH 44242 (USA)
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26
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Li Y, Xue C, Wang M, Urbas A, Li Q. Photodynamic Chiral Molecular Switches with Thermal Stability: From Reflection Wavelength Tuning to Handedness Inversion of Self-Organized Helical Superstructures. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306396] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Li Y, Wang M, White TJ, Bunning TJ, Li Q. Azoarenes with Opposite Chiral Configurations: Light-Driven Reversible Handedness Inversion in Self-Organized Helical Superstructures. Angew Chem Int Ed Engl 2013; 52:8925-9. [DOI: 10.1002/anie.201303786] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Indexed: 11/10/2022]
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28
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Li Y, Wang M, White TJ, Bunning TJ, Li Q. Azoarenes with Opposite Chiral Configurations: Light-Driven Reversible Handedness Inversion in Self-Organized Helical Superstructures. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303786] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Zhang J, Zou Q, Tian H. Photochromic materials: more than meets the eye. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:378-99. [PMID: 22911949 DOI: 10.1002/adma.201201521] [Citation(s) in RCA: 478] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Indexed: 05/12/2023]
Abstract
Photochromic materials are a family of compounds which can undergo reversible photo-switches between two different states or isomers with remarkably different properties. Inspired by their smart photo-switchable characteristics, a variety of light-driven functional materials have been exploited, such as ultrahigh-density optical data storage, molecular switches, logic gates, molecular wires, optic/electronic devices, sensors, bio-imaging and so on. This review commences with a brief description of exciting progress in this field, from systems in solution to modified functional surfaces. Further development of these photo-switchable systems into practical applications as well as existing challenges are also discussed and put in prospect.
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Affiliation(s)
- Junji Zhang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, P. R. China
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30
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Peng X, Deng JG, Xu HB. Substituent and solvent effects on the fluorescent and photochromic properties of 2-(2-pyridyl)imidazole containing diarylethene derivatives. RSC Adv 2013. [DOI: 10.1039/c3ra43110j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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31
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Li Y, Li Q. Photochemically Reversible and Thermally Stable Axially Chiral Diarylethene Switches. Org Lett 2012; 14:4362-5. [DOI: 10.1021/ol3018165] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yannian Li
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44240, United States
| | - Quan Li
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44240, United States
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32
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Li Y, Urbas A, Li Q. Reversible Light-Directed Red, Green, and Blue Reflection with Thermal Stability Enabled by a Self-Organized Helical Superstructure. J Am Chem Soc 2012; 134:9573-6. [DOI: 10.1021/ja302772z] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yannian Li
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44242, United States
| | - Augustine Urbas
- Materials and Manufacturing
Directorate, Air Force Research Laboratory WPAFB, Ohio 45433, United States
| | - Quan Li
- Liquid Crystal Institute, Kent State University, Kent, Ohio 44242, United States
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33
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Wang Y, Li Q. Light-driven chiral molecular switches or motors in liquid crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:1926-45. [PMID: 22411073 DOI: 10.1002/adma.201200241] [Citation(s) in RCA: 177] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Indexed: 05/05/2023]
Abstract
The ability to tune molecular self-organization with an external stimulus is a main driving force in the bottom-up nanofabrication of molecular devices. Light-driven chiral molecular switches or motors in liquid crystals that are capable of self-organizing into optically tunable helical superstructures undoubtedly represent a striking example, owing to their unique property of selective light reflection and which may lead to applications in the future. In this review, we focus on different classes of light-driven chiral molecular switches or motors in liquid crystal media for the induction and manipulation of photoresponsive cholesteric liquid crystal systems and their consequent applications. Moreover, the change of helical twisting powers of chiral dopants and their capability of helix inversion in the induced cholesteric phases are highlighted and discussed in the light of their molecular geometric changes.
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Affiliation(s)
- Yan Wang
- Liquid Crystal Institute and Chemical Physics, Interdisciplinary Program, Kent State University, Kent, OH 44242, USA
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