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Bosire R, Ndaya D, Kasi RM. Recent progress in functional materials from lyotropic chromonic liquid crystals. POLYM INT 2020. [DOI: 10.1002/pi.6113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Reuben Bosire
- Department of Chemistry University of Connecticut Storrs CT USA
| | - Dennis Ndaya
- Department of Chemistry University of Connecticut Storrs CT USA
| | - Rajeswari M Kasi
- Department of Chemistry University of Connecticut Storrs CT USA
- Polymer Program, Institute of Material Science University of Connecticut Storrs CT USA
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2
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Baza H, Turiv T, Li BX, Li R, Yavitt BM, Fukuto M, Lavrentovich OD. Shear-induced polydomain structures of nematic lyotropic chromonic liquid crystal disodium cromoglycate. SOFT MATTER 2020; 16:8565-8576. [PMID: 32785364 DOI: 10.1039/d0sm01259a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Lyotropic chromonic liquid crystals (LCLCs) represent aqueous dispersions of organic disk-like molecules that form cylindrical aggregates. Despite the growing interest in these materials, their flow behavior is poorly understood. Here, we explore the effect of shear on dynamic structures of the nematic LCLC, formed by 14 wt% water dispersion of disodium cromoglycate (DSCG). We employ in situ polarizing optical microscopy (POM) and small-angle and wide-angle X-ray scattering (SAXS/WAXS) to obtain independent and complementary information on the director structures over a wide range of shear rates. The DSCG nematic shows a shear-thinning behavior with two shear-thinning regions (Region I at [small gamma, Greek, dot above] < 1 s-1 and Region III at [small gamma, Greek, dot above] > 10 s-1) separated by a pseudo-Newtonian Region II (1 s-1 < [small gamma, Greek, dot above] < 10 s-1). The material is of a tumbling type. In Region I, [small gamma, Greek, dot above] < 1 s-1, the director realigns along the vorticity axis. An increase of [small gamma, Greek, dot above] above 1 s-1 triggers nucleation of disclination loops. The disclinations introduce patches of the director that deviates from the vorticity direction and form a polydomain texture. Extension of the domains along the flow and along the vorticity direction decreases with the increase of the shear rate to 10 s-1. Above 10 s-1, the domains begin to elongate along the flow. At [small gamma, Greek, dot above] > 100 s-1, the texture evolves into periodic stripes in which the director is predominantly along the flow with left and right tilts. The period of stripes decreases with an increase of [small gamma, Greek, dot above]. The shear-induced transformations are explained by the balance of the elastic and viscous energies. In particular, nucleation of disclinations is associated with an increase of the elastic energy at the walls separating nonsingular domains with different director tilts. The uncovered shear-induced structural effects would be of importance in the further development of LCLC applications.
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Affiliation(s)
- Hend Baza
- Department of Physics, Kent State University, Kent, OH 44242, USA. and Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA
| | - Taras Turiv
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA and Materials Science Graduate Program, Kent State University, Kent, OH 44242, USA
| | - Bing-Xiang Li
- Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA and Materials Science Graduate Program, Kent State University, Kent, OH 44242, USA
| | - Ruipeng Li
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Benjamin M Yavitt
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA and Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA
| | - Masafumi Fukuto
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Oleg D Lavrentovich
- Department of Physics, Kent State University, Kent, OH 44242, USA. and Advanced Materials and Liquid Crystal Institute, Kent State University, Kent, OH 44242, USA and Materials Science Graduate Program, Kent State University, Kent, OH 44242, USA
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3
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Berart SD, Tortora L, Finotello D, Zupancic B, Zalar B, Green L, Lavrentovich OD. Order parameters and time evolution of mesophases in the lyotropic chromonic liquid crystal Sunset Yellow FCF by DNMR. SOFT MATTER 2018; 14:7277-7286. [PMID: 30140799 DOI: 10.1039/c8sm01221k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Uniaxial order parameters of the nematic and columnar mesophases in the lyotropic chromonic liquid crystal Sunset Yellow FCF have been determined from deuteron nuclear magnetic resonance, where random confinement of the system by the dispersion of aerosil nanoparticles has been performed to help obtain the angular dependent spectra. The long-time evolution study of the order parameters shows that the system requires tens of hours to stabilize after a deep change in temperature, in contrast with the very fast assembly process of the aggregates. Finally, the degree of order of the water molecules, forced by the uniaxial environment, has been determined.
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Affiliation(s)
- Sergio Diez Berart
- Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio 44242, USA
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4
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Dastan A, Frith WJ, Cleaver DJ. Thermal Hysteresis and Seeding of Twisted Fibers Formed by Achiral Discotic Particles. J Phys Chem B 2017; 121:9920-9928. [DOI: 10.1021/acs.jpcb.7b05316] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alireza Dastan
- Materials
and Engineering Research Institute, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
| | - William J. Frith
- Unilever Discover, Colworth Laboratories, Bedfordshire MK44 1LQ, United Kingdom
| | - Douglas J. Cleaver
- Materials
and Engineering Research Institute, Sheffield Hallam University, Howard Street, Sheffield S1 1WB, United Kingdom
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5
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Sidky H, Whitmer JK. The Emergent Nematic Phase in Ionic Chromonic Liquid Crystals. J Phys Chem B 2017; 121:6691-6698. [DOI: 10.1021/acs.jpcb.7b03113] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hythem Sidky
- Department of Chemical and
Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Jonathan K. Whitmer
- Department of Chemical and
Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, United States
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6
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van der Asdonk P, Kouwer PHJ. Liquid crystal templating as an approach to spatially and temporally organise soft matter. Chem Soc Rev 2017; 46:5935-5949. [DOI: 10.1039/c7cs00029d] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Liquid crystal templating: an emerging technique to organise and control soft matter at multiple length scales.
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Affiliation(s)
- Pim van der Asdonk
- Radboud University
- Institute for Molecules and Materials
- 6525 AJ Nijmegen
- The Netherlands
| | - Paul H. J. Kouwer
- Radboud University
- Institute for Molecules and Materials
- 6525 AJ Nijmegen
- The Netherlands
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7
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8
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Magana JR, Homs M, Solans C, Obiols-Rabasa M, Salonen LM, Rodríguez-Abreu C. Self-Assembly and Formation of Chromonic Liquid Crystals from the Dyes Quinaldine Red Acetate and Pyronin Y. J Phys Chem B 2016; 120:250-8. [PMID: 26700729 DOI: 10.1021/acs.jpcb.5b10567] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aqueous self-assembly behavior of the dyes Quinaldine red acetate and Pyronin Y in a wide range of concentrations is reported here for the first time. (1)H NMR spectroscopy, polarized-light optical microscopy, and small and wide X-ray scattering were used to get insight into molecular interactions, phase boundaries and aggregate structure. Quinaldine red acetate and Pyronin Y self-organize into unimolecular stacks driven by attractive aromatic interactions. At high concentrations, spatial correlation among the molecular stacks gives rise to nematic liquid crystals in both systems. Quinaldine red acetate additionally produces a rare chromonic O phase built of columnar aggregates with anisotropic cross-section ordered in a rectangular lattice. The O phase changes into a columnar lamellar structure as a result of a temperature-induced phase transition. Results open the possibility of finding chromonic liquid crystals in other commercially available dyes with a similar molecular structure. This would eventually expand the availability of these unique soft materials and thus introduce new applications for marketed dyes.
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Affiliation(s)
- J R Magana
- Instituto de Química Avanzada de Cataluña, Consejo Superior de Investigaciones Científicas (IQAC-CSIC), CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - M Homs
- Instituto de Química Avanzada de Cataluña, Consejo Superior de Investigaciones Científicas (IQAC-CSIC), CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - C Solans
- Instituto de Química Avanzada de Cataluña, Consejo Superior de Investigaciones Científicas (IQAC-CSIC), CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - M Obiols-Rabasa
- Division of Physical Chemistry, Lund University , Getingevägen 60, SE-22241 Lund, Sweden
| | - L M Salonen
- International Iberian Nanotechnology Laboratory , Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - C Rodríguez-Abreu
- International Iberian Nanotechnology Laboratory , Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
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9
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Plötz PA, Polyutov SP, Ivanov SD, Fennel F, Wolter S, Niehaus T, Xie Z, Lochbrunner S, Würthner F, Kühn O. Biphasic aggregation of a perylene bisimide dye identified by exciton-vibrational spectra. Phys Chem Chem Phys 2016; 18:25110-25119. [DOI: 10.1039/c6cp04898f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The quantum efficiency of light emission supramolecular aggregates strongly depends on the intermolecular coupling. We present a molecule which demonstrates two different aggregated structures with high and low quantum efficiency. The spectral signatures can be understood by simulating the aggregated structures and the corresponding exciton-vibrational spectra.
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Affiliation(s)
- P.-A. Plötz
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
| | - S. P. Polyutov
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
- Laboratory for Nonlinear Optics and Spectroscopy
| | - S. D. Ivanov
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
| | - F. Fennel
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
| | - S. Wolter
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
| | - T. Niehaus
- Université Claude Bernard Lyon 1
- CNRS
- Institut Lumière Matière
- F-69622
- France
| | - Z. Xie
- Institut für Organische Chemie & Center for Nanosystems Chemistry
- Universität Würzburg
- 97074 Würzburg
- Germany
| | - S. Lochbrunner
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
| | - F. Würthner
- Institut für Organische Chemie & Center for Nanosystems Chemistry
- Universität Würzburg
- 97074 Würzburg
- Germany
| | - O. Kühn
- Institut für Physik
- Universität Rostock
- 18059 Rostock
- Germany
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10
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Yin D, Liu Y, Tang J, Zhao F, Chen Z, Zhang T, Zhang X, Chang N, Wu C, Chen D, Wu M. Huge enhancement of upconversion luminescence by broadband dye sensitization of core/shell nanocrystals. Dalton Trans 2016; 45:13392-8. [DOI: 10.1039/c6dt01187j] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The UCL intensity of dye-sensitized UCNCs excited at 820 nm is 800-folds higher than that of pure UCNCs excited at 980 nm.
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Affiliation(s)
- Dongguang Yin
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Yumin Liu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Jingxiu Tang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Feifei Zhao
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Zhiwen Chen
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Tingting Zhang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Xinyu Zhang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Na Chang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Chenglong Wu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Dongwei Chen
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
| | - Minghong Wu
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai 200444
- P R China
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11
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Zhang YF, Yang DJ, Wang JH, Wang YL, Ding SJ, Zhou L, Hao ZH, Wang QQ. Multiple hybridized resonances of IR-806 chromonic molecules strongly coupled to Au nanorods. NANOSCALE 2015; 7:8503-8509. [PMID: 25896476 DOI: 10.1039/c5nr00051c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Strong coupling of plasmons and molecules generates intriguingly hybridized resonance. The IR-806 molecule is a near-infrared cyanine liquid crystal dye with multiple molecular bands and its tunable absorption spectrum varies dramatically with concentration. In this article, we investigate multiple hybridized resonances of the Au nanorods (AuNRs) strongly coupled to IR-806 molecules. Five hybridized resonance peaks are observed in the extinction spectra of the AuNR@IR-806 hybrids. Two resonance peaks at approximately 840 and 912 nm in the hybrids are reported for the first time. The dependence of the multiple hybridized peaks on the bare plasmon resonance wavelength of AuNRs and the molecular concentration is also demonstrated. The observations presented herein provide a plasmon-molecule coupling route for tuning optical responses of liquid crystal molecules.
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Affiliation(s)
- Ya-Fang Zhang
- Key Laboratory of Artificial Micro- and Nano-structures of the Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan, 430072, P. R. China.
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12
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Mercado BR, Nieser KJ, Collings PJ. Cooperativity of the assembly process in a low concentration chromonic liquid crystal. J Phys Chem B 2014; 118:13312-20. [PMID: 25365417 DOI: 10.1021/jp510025j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
IR-806 is a near-infrared cyanine dye that undergoes a two-step assembly process in aqueous solutions. The final assemblies orientationally order into a liquid crystal at a very low concentration (∼0.6 wt % at room temperature). While the first step of the assembly process is continuous as the dye concentration or temperature is varied (isodesmic), the second step is more abrupt (cooperative). Because the absorption spectrum of IR-806 changes dramatically during the assembly process, careful equilibrium and kinetic absorption experiments are utilized to examine the details of the cooperative second step. These experiments involve changes in both concentration and temperature, allowing a close thermodynamic analysis of the assembly process. Both equilibrium and kinetic investigations reveal that the assembly process is highly cooperative and can be described by multiple models (for example, nucleation and growth) in the highly cooperative limit. The enthalpy associated with the growth process and the activation energy of the rate-limiting step during disassembly are determined. These findings have significant implications for the structure of the assemblies that form the liquid crystal phase in IR-806.
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Affiliation(s)
- Benjamin R Mercado
- Department of Physics & Astronomy, Swarthmore College , Swarthmore, Pennsylvania 19081, United States
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13
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Walker M, Masters AJ, Wilson MR. Self-assembly and mesophase formation in a non-ionic chromonic liquid crystal system: insights from dissipative particle dynamics simulations. Phys Chem Chem Phys 2014; 16:23074-81. [DOI: 10.1039/c4cp03092c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Results are presented from a dissipative particle dynamics (DPD) simulation of a model non-ionic chromonic system, TP6EO2M, composed of a poly(ethylene glycol) functionalised aromatic (triphenylene) core.
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Affiliation(s)
- Martin Walker
- Department of Chemistry
- Durham University Science Laboratories
- Durham, UK
| | - Andrew J. Masters
- School of Chemical Engineering and Analytical Science
- University of Manchester
- Manchester, UK
| | - Mark R. Wilson
- Department of Chemistry
- Durham University Science Laboratories
- Durham, UK
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14
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Yang S, Wang B, Cui D, Kerwood D, Wilkens S, Han J, Luk YY. Stereochemical Control of Nonamphiphilic Lyotropic Liquid Crystals: Chiral Nematic Phase of Assemblies Separated by Six Nanometers of Aqueous Solvents. J Phys Chem B 2013; 117:7133-43. [DOI: 10.1021/jp401382h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Sijie Yang
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United
States
| | - Bing Wang
- Novartis Institutes for BioMedical Research, Inc., Cambridge, Massachusetts
02139, United States
| | - Dawei Cui
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United
States
| | - Deborah Kerwood
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United
States
| | - Stephan Wilkens
- Department
of Biochemistry and
Molecular Biology, Upstate Medical University, State University of New York, Syracuse, New York 13210, United
States
| | - Junjie Han
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United
States
| | - Yan-Yeung Luk
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, United
States
- Department of Biomedical
and
Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
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