1
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Panja S. Dosimetric gelator probes and their application as sensors. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Van Lommel R, De Borggraeve WM, De Proft F, Alonso M. Computational Tools to Rationalize and Predict the Self-Assembly Behavior of Supramolecular Gels. Gels 2021; 7:87. [PMID: 34287290 PMCID: PMC8293097 DOI: 10.3390/gels7030087] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022] Open
Abstract
Supramolecular gels form a class of soft materials that has been heavily explored by the chemical community in the past 20 years. While a multitude of experimental techniques has demonstrated its usefulness when characterizing these materials, the potential value of computational techniques has received much less attention. This review aims to provide a complete overview of studies that employ computational tools to obtain a better fundamental understanding of the self-assembly behavior of supramolecular gels or to accelerate their development by means of prediction. As such, we hope to stimulate researchers to consider using computational tools when investigating these intriguing materials. In the concluding remarks, we address future challenges faced by the field and formulate our vision on how computational methods could help overcoming them.
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Affiliation(s)
- Ruben Van Lommel
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F Leuven Chem & Tech, P.O. Box 2404, 3001 Leuven, Belgium;
- Eenheid Algemene Chemie (ALGC), Department of Chemistry, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium;
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F Leuven Chem & Tech, P.O. Box 2404, 3001 Leuven, Belgium;
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Department of Chemistry, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium;
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Department of Chemistry, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels, Belgium;
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3
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Rizzo C, Marullo S, Billeci F, D'Anna F. Catalysis in Supramolecular Systems: the Case of Gel Phases. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100372] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Carla Rizzo
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Salvatore Marullo
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Floriana Billeci
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesca D'Anna
- Università degli Studi di Palermo Dipartimento STEBICEF Viale delle Scienze, Ed. 17 90128 Palermo Italy
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4
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Komiyama T, Harada Y, Hase T, Mori S, Kimura S, Yokoya M, Yamanaka M. Effect of Alkyl Chain Length of N-Alkyl-N'-(2-benzylphenyl)ureas on Gelation. Chem Asian J 2021; 16:1750-1755. [PMID: 34008323 DOI: 10.1002/asia.202100433] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/17/2021] [Indexed: 11/07/2022]
Abstract
Urea derivatives that were substituted with a 2-benzylphenyl group and an alkyl group functioned as low molecular weight gelators for various organic solvents and ionic liquids. Urea derivatives with long alkyl chains were effective for the gelation of polar solvents. However, they were not suitable for the gelation of non-polar solvents, whereas urea derivatives with short alkyl chains were effective. Ionic liquids were similar to polar solvents in that urea derivatives with long alkyl chains were the most effective gelators. The physical properties of the formed supramolecular gels were analyzed by dynamic viscoelasticity measurements using a rheometer.
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Affiliation(s)
- Tomoki Komiyama
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan.,Department of Chemistry, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Yoko Harada
- Department of Chemistry, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Takayuki Hase
- Department of Chemistry, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Sota Mori
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Shinya Kimura
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Masashi Yokoya
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
| | - Masamichi Yamanaka
- Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo, 204-8588, Japan
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5
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Yokoya M, Kimura S, Yamanaka M. Urea Derivatives as Functional Molecules: Supramolecular Capsules, Supramolecular Polymers, Supramolecular Gels, Artificial Hosts, and Catalysts. Chemistry 2021; 27:5601-5614. [DOI: 10.1002/chem.202004367] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/11/2020] [Indexed: 01/02/2023]
Affiliation(s)
- Masashi Yokoya
- Meiji Pharmaceutical University (MPU) 2-522-1 Noshio Kiyose 204-8588 Japan
| | - Shinya Kimura
- Meiji Pharmaceutical University (MPU) 2-522-1 Noshio Kiyose 204-8588 Japan
| | - Masamichi Yamanaka
- Meiji Pharmaceutical University (MPU) 2-522-1 Noshio Kiyose 204-8588 Japan
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6
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Brahma R, Baruah JB. Intrinsic structural features of coordination polymers make an impact on dye selectivity. CrystEngComm 2021. [DOI: 10.1039/d1ce00481f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Differences in hydrogen-bonded assembly help in recognition of dyes.
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Affiliation(s)
- Rinki Brahma
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781 039
- India
| | - Jubaraj B. Baruah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781 039
- India
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Auria-Luna F, Marqués-López E, Romanos E, Fernández-Moreira V, Gimeno MC, Marzo I, Herrera RP. Novel ureido-dihydropyridine scaffolds as theranostic agents. Bioorg Chem 2020; 105:104364. [PMID: 33113409 DOI: 10.1016/j.bioorg.2020.104364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/25/2020] [Accepted: 10/07/2020] [Indexed: 12/13/2022]
Abstract
In this work, the synthesis of interesting urea derivatives 5 based on 1,4-dihydropyridines 3 is described for the first time. Considering that both families exhibit potential as drugs to treat various diseases, their activity as anticancer agents has been evaluated in HeLa (cervix), Jurkat (leukaemia) and A549 (lung) cancer cell lines as well as on healthy mice in vivo. In general, whereas 1,4-dihydropyridines show a moderate cytotoxic activity, their urea analogues cause an extraordinary increase in their antiproliferative activity, specially towards HeLa cells. Because of the chiral nature of these compounds, enantiomerically enriched samples were also tested, showing different cytotoxic activity than the racemic mixture. Although the reason is not clear, it could be caused by a complex amalgam of physical and chemical contributions. The studied compounds also exhibit luminescent properties, which allow performing a biodistribution study in cancer cells. They have emission maxima between 420 and 471 nm, being the urea derivatives in general red shifted. Emission quenching was observed for those compounds containing a nitro group (3e,f and 5e,f). Fluorescence microscopy showed that 1,4-dihydropyridines 3a and 3g localised in the lysosomes, in contrast to the urea derivatives 5h that accumulated in the cell membrane. This different distribution could be key to explain the differences found in the cytotoxic activity and in the mechanism of action. Interestingly, a preliminary in vivo study regarding the acute toxicity of some of these compounds on healthy mice has been conducted, using a concentration up to 7200 times higher than the corresponding IC50 value. No downgrade in the welfare of the tested mice was observed, which could support their use in preclinical tumour models.
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Affiliation(s)
- Fernando Auria-Luna
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain
| | - Eugenia Marqués-López
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain
| | - Eduardo Romanos
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain; Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain; Departamento de Imagen y Fenotipado, Instituto Aragonés de Ciencias de la Salud, Centro de Investigación Biomédica de Aragón (CIBA), Avda. San Juan Bosco, 13, planta D, E-50009 Zaragoza, Spain
| | - Vanesa Fernández-Moreira
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain.
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain
| | - Isabel Marzo
- Departamento de Bioquímica y Biología Celular, Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain
| | - Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, E-50009 Zaragoza, Spain.
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8
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Alegre-Requena JV, Grijalvo S, Sampedro D, Mayr J, Saldías C, Marrero-Tellado JJ, Eritja R, Herrera RP, Díaz DD. Sulfonamide as amide isostere for fine-tuning the gelation properties of physical gels. RSC Adv 2020; 10:11481-11492. [PMID: 35495355 PMCID: PMC9050504 DOI: 10.1039/d0ra00943a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 03/06/2020] [Indexed: 12/29/2022] Open
Abstract
(S)-2-Stearamidopentanedioic acid (C18-Glu) is a known LMW gelator that forms supramolecular gels in a variety of solvents. In this work, we have carried out the isosteric substitution of the amide group by a sulfonamide moiety yielding the new isosteric gelator (S)-2-(octadecylsulfonamido)pentanedioic acid (Sulfo-Glu). The gelation ability and the key properties of the corresponding gels were compared in terms of gelation concentration, gel-to-sol transition temperature, mechanical properties, morphology, and gelation kinetics in several organic solvents and water. This comparison was also extended to (S)-2-(4-hexadecyl-1H-1,2,3-triazol-4-yl)pentanedioic acid (Click-Glu), which also constitutes an isostere of C18-Glu. The stabilizing interactions were explored through computational calculations. In general, Sulfo-Glu enabled the formation of non-toxic gels at lower concentrations, faster, and with higher thermal-mechanical stabilities than those obtained with the other isosteres in most solvents. Furthermore, the amide-sulfonamide isosteric substitution also influenced the morphology of the gel networks as well as the release rate of an embedded antibiotic (vancomycin) leading to antibacterial activity in vitro against Staphylococcus aureus.
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Affiliation(s)
- Juan V Alegre-Requena
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Santiago Grijalvo
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Jordi Girona 18-26 08034 Barcelona Spain
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18-26 08034 Barcelona Spain
| | - Diego Sampedro
- Departamento de Química, Universidad de La Rioja Madre de Dios, 51 26006 Logroño Spain
| | - Judith Mayr
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - César Saldías
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile Macul 7820436 Santiago Chile
| | - José Juan Marrero-Tellado
- Departamento de Química Orgánica, Universidad de La Laguna Avda. Astrofísico Francisco Sánchez 38206 La Laguna Tenerife Spain
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna Avda. Astrofísico Francisco Sánchez 2 38206 La Laguna Tenerife Spain
| | - Ramón Eritja
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Jordi Girona 18-26 08034 Barcelona Spain
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18-26 08034 Barcelona Spain
| | - Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza Pedro Cerbuna 12 50009 Zaragoza Spain
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
- Departamento de Química Orgánica, Universidad de La Laguna Avda. Astrofísico Francisco Sánchez 38206 La Laguna Tenerife Spain
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna Avda. Astrofísico Francisco Sánchez 2 38206 La Laguna Tenerife Spain
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9
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Aguilera DA, Tanchoux N, Fochi M, Bernardi L. Blue Chemistry. Marine Polysaccharide Biopolymers in Asymmetric Catalysis: Challenges and Opportunities. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901924] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daniel Antonio Aguilera
- Institut Charles Gerhardt; CNRS-ENSCM-UM; 8, Rue Ecole Normale 34296 Montpellier France
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Nathalie Tanchoux
- Institut Charles Gerhardt; CNRS-ENSCM-UM; 8, Rue Ecole Normale 34296 Montpellier France
| | - Mariafrancesca Fochi
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Luca Bernardi
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum University of Bologna; V. Risorgimento 4 40136 Bologna Italy
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10
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Gimeno MC, Herrera RP. Hydrogen Bonding and Internal or External Lewis or Brønsted Acid Assisted (Thio)urea Catalysts. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901344] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- M. Concepción Gimeno
- Departamento de Química Inorgánica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Raquel P. Herrera
- Departamento de Química Orgánica. Laboratorio de Organocatálisis Asimétrica; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) CSIC-Universidad de Zaragoza; C/ Pedro Cerbuna 12 50009 Zaragoza Spain
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11
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Tautz M, Torras J, Grijalvo S, Eritja R, Saldías C, Alemán C, Díaz DD. Expanding the limits of amide-triazole isosteric substitution in bisamide-based physical gels. RSC Adv 2019; 9:20841-20851. [PMID: 35515547 PMCID: PMC9065762 DOI: 10.1039/c9ra03316e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 06/12/2019] [Indexed: 11/21/2022] Open
Abstract
Gelation of organic solvents using N,N'-((1S,2S)-cyclohexane-1,2-diyl)didodecanamide (C12-Cyc) is driven by its self-assembly via antiparallel hydrogen bonds and van der Waals intermolecular interactions. In this work we carried out a dual isosteric substitution of the two amide groups with 1,2,3-triazole rings affording the corresponding isosteric gelator (click-C12-Cyc). A detailed comparative study in terms of the gelation ability and gel properties demonstrated that the 1,2,3-triazoles can take over all of the functions derived from the amide groups offering a versatile strategy for tuning the properties of the corresponding gels. This is not an obvious outcome because the directional amide groups in C12-Cyc constitute the source of the hydrogen bonds to build the 3D self-assembled network. Furthermore, theoretical calculations revealed that click-C12-Cyc can adopt a wide variety of interacting patterns, whose relative stability depends on the polarity of the environment, this is in good agreement with the experimental data obtained regarding its gelation ability. Other important features of click-C12-Cyc for potential practical applications are its non-cytotoxic character and its phase-selective gelation of water-oil mixtures.
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Affiliation(s)
- Markus Tautz
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Juan Torras
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14, Ed. 12 08019 Barcelona Spain
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14 08019 Barcelona Spain
| | - Santiago Grijalvo
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Jordi Girona 18-26 08034 Barcelona Spain
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18-26 08034 Barcelona Spain
| | - Ramón Eritja
- Biomedical Research Networking Centre in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Jordi Girona 18-26 08034 Barcelona Spain
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) Jordi Girona 18-26 08034 Barcelona Spain
| | - César Saldías
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile Casilla 302, Correo 22 Santiago Chile
| | - Carlos Alemán
- Departament d'Enginyeria Química, EEBE, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14, Ed. 12 08019 Barcelona Spain
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya C/Eduard Maristany, 10-14 08019 Barcelona Spain
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg Universitätsstr. 31 93053 Regensburg Germany
- Instituto de Productos Naturales y Agrobiología del CSIC Avda. Astrofísico Francisco Sánchez 3 38206 La Laguna Tenerife Spain
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12
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Basavalingappa V, Guterman T, Tang Y, Nir S, Lei J, Chakraborty P, Schnaider L, Reches M, Wei G, Gazit E. Expanding the Functional Scope of the Fmoc-Diphenylalanine Hydrogelator by Introducing a Rigidifying and Chemically Active Urea Backbone Modification. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900218. [PMID: 31316891 PMCID: PMC6619482 DOI: 10.1002/advs.201900218] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/07/2019] [Indexed: 05/22/2023]
Abstract
Peptidomimetic low-molecular-weight hydrogelators, a class of peptide-like molecules with various backbone amide modifications, typically give rise to hydrogels of diverse properties and increased stability compared to peptide hydrogelators. Here, a new peptidomimetic low-molecular-weight hydrogelator is designed based on the well-studied N-fluorenylmethoxycarbonyl diphenylalanine (Fmoc-FF) peptide by replacing the amide bond with a frequently employed amide bond surrogate, the urea moiety, aiming to increase hydrogen bonding capabilities. This designed ureidopeptide, termed Fmoc-Phe-NHCONH-Phe-OH (Fmoc-FuF), forms hydrogels with improved mechanical properties, as compared to those formed by the unmodified Fmoc-FF. A combination of experimental and computational structural methods shows that hydrogen bonding and aromatic interactions facilitate Fmoc-FuF gel formation. The Fmoc-FuF hydrogel possesses properties favorable for biomedical applications, including shear thinning, self-healing, and in vitro cellular biocompatibility. Additionally, the Fmoc-FuF, but not Fmoc-FF, hydrogel presents a range of functionalities useful for other applications, including antifouling, slow release of urea encapsulated in the gel at a high concentration, selective mechanical response to fluoride anions, and reduction of metal ions into catalytic nanoparticles. This study demonstrates how a simple backbone modification can enhance the mechanical properties and functional scope of a peptide hydrogel.
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Affiliation(s)
- Vasantha Basavalingappa
- Department of Molecular Microbiology and BiotechnologyGeorge S. Wise Faculty of Life SciencesTel Aviv UniversityTel Aviv69978Israel
| | - Tom Guterman
- Department of Molecular Microbiology and BiotechnologyGeorge S. Wise Faculty of Life SciencesTel Aviv UniversityTel Aviv69978Israel
| | - Yiming Tang
- Department of PhysicsState Key Laboratory of Surface PhysicsKey Laboratory for Computational Physical Sciences (MOE),and Collaborative Innovation Center of Advanced Microstructures (Nanjing)Fudan UniversityShanghai200433P. R. China
| | - Sivan Nir
- Institute of ChemistryThe Hebrew University of JerusalemJerusalem91905Israel
| | - Jiangtao Lei
- Department of PhysicsState Key Laboratory of Surface PhysicsKey Laboratory for Computational Physical Sciences (MOE),and Collaborative Innovation Center of Advanced Microstructures (Nanjing)Fudan UniversityShanghai200433P. R. China
| | - Priyadarshi Chakraborty
- Department of Molecular Microbiology and BiotechnologyGeorge S. Wise Faculty of Life SciencesTel Aviv UniversityTel Aviv69978Israel
| | - Lee Schnaider
- Department of Molecular Microbiology and BiotechnologyGeorge S. Wise Faculty of Life SciencesTel Aviv UniversityTel Aviv69978Israel
| | - Meital Reches
- Institute of ChemistryThe Hebrew University of JerusalemJerusalem91905Israel
| | - Guanghong Wei
- Department of PhysicsState Key Laboratory of Surface PhysicsKey Laboratory for Computational Physical Sciences (MOE),and Collaborative Innovation Center of Advanced Microstructures (Nanjing)Fudan UniversityShanghai200433P. R. China
| | - Ehud Gazit
- Department of Molecular Microbiology and BiotechnologyGeorge S. Wise Faculty of Life SciencesTel Aviv UniversityTel Aviv69978Israel
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13
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Aguilera DA, Spinozzi Di Sante L, Pettignano A, Riccioli R, Roeske J, Albergati L, Corti V, Fochi M, Bernardi L, Quignard F, Tanchoux N. Adsorption of a Chiral Amine on Alginate Gel Beads and Evaluation of its Efficiency as Heterogeneous Enantioselective Catalyst. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel Antonio Aguilera
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
- Institut Charles Gerhardt; CNRS-ENSCM-UM; 8, Rue Ecole Normale 34296 Montpellier France
| | - Lisa Spinozzi Di Sante
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Asja Pettignano
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
- Institut Charles Gerhardt; CNRS-ENSCM-UM; 8, Rue Ecole Normale 34296 Montpellier France
| | - Riccardo Riccioli
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Joël Roeske
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
- Haute Ecole d'Ingénierie et d'Architecture; Bd. de Pérolles 80 1705 Fribourg Switzerland
| | - Luce Albergati
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
- Haute Ecole d'Ingénierie et d'Architecture; Bd. de Pérolles 80 1705 Fribourg Switzerland
| | - Vasco Corti
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Mariafrancesca Fochi
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Luca Bernardi
- Department of Industrial Chemistry “Toso Montanari” & INSTM RU Bologna; Alma Mater Studiorum - University of Bologna; V. Risorgimento 4 40136 Bologna Italy
| | - Françoise Quignard
- Institut Charles Gerhardt; CNRS-ENSCM-UM; 8, Rue Ecole Normale 34296 Montpellier France
| | - Nathalie Tanchoux
- Institut Charles Gerhardt; CNRS-ENSCM-UM; 8, Rue Ecole Normale 34296 Montpellier France
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14
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Kawamorita S, Fujiki M, Li Z, Kitagawa T, Imada Y, Naota T. Aggregation-induced Substrate Specificity in Aerobic Reduction of Olefins with Ultrasound Gel Catalyst of Synthetic Flavin. ChemCatChem 2019. [DOI: 10.1002/cctc.201801837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Soichiro Kawamorita
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Osaka 560-8531 Japan
| | - Misa Fujiki
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Osaka 560-8531 Japan
| | - Zimeng Li
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Osaka 560-8531 Japan
| | - Takahiro Kitagawa
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Osaka 560-8531 Japan
| | - Yasushi Imada
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Osaka 560-8531 Japan
- Present address: Department of Chemical Science and Technology Institute of Technology and Science; The University of Tokushima; Tokushima 770-8506 Japan
| | - Takeshi Naota
- Department of Chemistry Graduate School of Engineering Science; Osaka University; Osaka 560-8531 Japan
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15
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Tautz M, Saldías C, Lozano-Gorrín AD, Díaz Díaz D. Use of a bis-1,2,3-triazole gelator for the preparation of supramolecular metallogels and stabilization of gold nanoparticles. NEW J CHEM 2019. [DOI: 10.1039/c9nj03427g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a series of functional metallogels have been prepared using a bis-1,2,3-triazole gelator prepared using the isosteric substitution method.
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Affiliation(s)
- Markus Tautz
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
| | - César Saldías
- Departamento de Química Física, Facultad de Química
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
| | - Antonio Diego Lozano-Gorrín
- Departamento de Química
- Universidad de La Laguna
- 38206 La Laguna
- Spain
- Instituto Universitario de Materiales y Nanotecnología (IMN)
| | - David Díaz Díaz
- Institut für Organische Chemie
- Universität Regensburg
- 93053 Regensburg
- Germany
- Instituto de Productos Naturales y Agrobiología del CSIC
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16
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Tómasson DA, Ghosh D, Kržišnik Z, Fasolin LH, Vicente AA, Martin AD, Thordarson P, Damodaran KK. Enhanced Mechanical and Thermal Strength in Mixed-Enantiomers-Based Supramolecular Gel. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12957-12967. [PMID: 30272986 DOI: 10.1021/acs.langmuir.8b02729] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Mixing supramolecular gels based on enantiomers leads to re-arrangement of gel fibers at the molecular level, which results in more favorable packing and tunable properties. Bis(urea) compounds tagged with a phenylalanine methyl ester in racemic and enantiopure forms were synthesized. Both enantiopure and racemate compounds formed gels in a wide range of solvents and the racemate (1-rac) formed a stronger gel network compared with the enantiomers. The gel (1R+1S) obtained by mixing equimolar amount of enantiomers (1R and 1S) showed enhanced mechanical and thermal stability compared to enantiomers and racemate gels. The preservation of chirality in these compounds was analyzed by circular dichroism and optical rotation measurements. Analysis of the scanning electron microscopy (SEM) and atomic force microscopy (AFM) images revealed that the network in the mixed gel is a combination of enantiomers and racemate fibers, which was further supported by solid-state NMR. The analysis of the packing in xerogels by solid-state NMR spectra and the existence of twisted-tape morphology in SEM and AFM images confirmed the presence of both self-sorted and co-assembled fibers in mixed gel. The enhanced thermal and mechanical strength may be attributed to the enhanced intermolecular forces between the racemate and the enantiomer and the combination of both self-sorted and co-assembled enantiomers in the mixed gel.
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Affiliation(s)
- Daníel Arnar Tómasson
- Department of Chemistry, Science Institute , University of Iceland , Dunhagi 3 , 107 Reykjavík , Iceland
| | - Dipankar Ghosh
- Department of Chemistry, Science Institute , University of Iceland , Dunhagi 3 , 107 Reykjavík , Iceland
| | - Zala Kržišnik
- Department of Chemistry, Science Institute , University of Iceland , Dunhagi 3 , 107 Reykjavík , Iceland
| | - Luiz Henrique Fasolin
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - António A Vicente
- Centre of Biological Engineering , University of Minho , Campus de Gualtar , 4710-057 Braga , Portugal
| | - Adam D Martin
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , University of New South Wales , Sydney 2052 , Australia
| | - Pall Thordarson
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , University of New South Wales , Sydney 2052 , Australia
| | - Krishna K Damodaran
- Department of Chemistry, Science Institute , University of Iceland , Dunhagi 3 , 107 Reykjavík , Iceland
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17
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Urea Activation by an External Brønsted Acid: Breaking Self-Association and Tuning Catalytic Performance. Catalysts 2018. [DOI: 10.3390/catal8080305] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
In this work, we hypothesize that Brønsted acids can activate urea-based catalysts by diminishing its self-assembly tendency. As a proof of concept, we used the asymmetric Friedel–Crafts alkylation of indoles with nitroalkenes as a benchmark reaction. The resulting 3-substituted indole derivatives were obtained with better results due to cooperative effects of the chiral urea and a Brønsted acid additive. Such synergy has been rationalized in terms of disassembly of the supramolecular catalyst aggregates, affording a more acidic and rigid catalytic complex.
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18
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Bora P, Bez G. Chemoselective isocyanide insertion into the N–H bond using iodine–DMSO: metal-free access to substituted ureas. Chem Commun (Camb) 2018; 54:8363-8366. [DOI: 10.1039/c8cc05019h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A chemoselective metal-free method for isocyanide insertion into amines is developed to synthesize symmetrical and unsymmetrical ureas.
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Affiliation(s)
- Porag Bora
- Department of Chemistry
- North Eastern Hill University
- Shillong-793022
- India
| | - Ghanashyam Bez
- Department of Chemistry
- North Eastern Hill University
- Shillong-793022
- India
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19
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Izaga A, Herrera RP, Gimeno MC. Gold(I)-Mediated Thiourea Organocatalyst Activation: A Synergic Effect for Asymmetric Catalysis. ChemCatChem 2017; 9:1313-1321. [PMID: 28706568 PMCID: PMC5485003 DOI: 10.1002/cctc.201601527] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/12/2017] [Indexed: 11/06/2022]
Abstract
Several group 11 metal complexes with chiral thiourea organocatalysts have been prepared and tested as organocatalysts. The promising results on the influence of metal-assisted thiourea organocatalysts in the asymmetric Friedel-Crafts alkylation of indole with nitrostyrene are described. Better results with the metal complexes have been achieved because of the cooperative effects between the chiral thiourea and the metal. The synergic effect between both species is higher than the effect promoted by each one separately, especially for gold(I). These outcomes are attributed to a pioneering gold(I) activation of the thiourea catalysts, affording a more acidic and rigid catalytic complex than that provided by the thiourea alone. Furthermore, the use of the gold-thiourea organocatalyst allows reducing the catalyst loading to 1-3 mol %. This contribution could become an important starting point for further investigations opening a new line of research overlooked so far in the literature.
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Affiliation(s)
- Anabel Izaga
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)CSIC-Universidad de ZaragozaC/ Pedro Cerbuna, No. 12E-50009ZaragozaSpain
| | - Raquel P. Herrera
- Departamento de Química Orgánica. Laboratorio de Organocatálisis, Asimétrica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)CSIC-Universidad de ZaragozaC/ Pedro Cerbuna, No. 12E-50009ZaragozaSpain
| | - M. Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)CSIC-Universidad de ZaragozaC/ Pedro Cerbuna, No. 12E-50009ZaragozaSpain
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20
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Majumder J, Dastidar P. An Easy Access to Organic Salt-Based Stimuli-Responsive and Multifunctional Supramolecular Hydrogels. Chemistry 2016; 22:9267-76. [DOI: 10.1002/chem.201601136] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Joydeb Majumder
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Kolkata 700032 India
| | - Parthasarathi Dastidar
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Kolkata 700032 India
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21
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Schiller J, Alegre-Requena JV, Marqués-López E, Herrera RP, Casanovas J, Alemán C, Díaz Díaz D. Self-assembled fibrillar networks of a multifaceted chiral squaramide: supramolecular multistimuli-responsive alcogels. SOFT MATTER 2016; 12:4361-4374. [PMID: 27087352 DOI: 10.1039/c5sm02997j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Chiral N,N'-disubstituted squaramide has been found to undergo self-assembly in a variety of alcoholic solvents at low concentrations leading to the formation of novel nanostructured supramolecular alcogels. The gels responded to thermal, mechanical, optical and chemical stimuli. Solubility studies, gelation ability tests and computer modeling of a series of structurally related squaramides proved the existence of a unique combination of non-covalent molecular interactions and favorable hydrophobic/hydrophilic balance in that drive the anisotropic growth of alcogel networks. The results have also revealed a remarkable effect of ultrasound on both the gelation kinetics and the properties of the alcogels.
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Affiliation(s)
- Jana Schiller
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany.
| | - Juan V Alegre-Requena
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany. and Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Eugenia Marqués-López
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Jordi Casanovas
- Departament de Química, EPS, Universitat de Lleida, Jaume II 69, 25001 Lleida, Spain
| | - Carlos Alemán
- Departament d'Enginyeria Química - ETSEIB and Center for Research in Nano-Engineering, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany. and IQAC-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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22
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Schiller J, Pérez-Ruiz R, Sampedro D, Marqués-López E, Herrera RP, Díaz Díaz D. Fluoride Anion Recognition by a Multifunctional Urea Derivative: An Experimental and Theoretical Study. SENSORS (BASEL, SWITZERLAND) 2016; 16:E658. [PMID: 27171087 PMCID: PMC4883349 DOI: 10.3390/s16050658] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 04/28/2016] [Accepted: 05/03/2016] [Indexed: 12/29/2022]
Abstract
In this work we demonstrate the ability of a multifaceted N,N'-disubstituted urea to selectively recognize fluoride anion (F(-)) among other halides. This additional function is now added to its already reported organocatalytic and organogelator properties. The signaling mechanism relies on the formation of a charge-transfer (CT) complex between the urea-based sensor and F¯ in the ground state with a high association constant as demonstrated by absorption and fluorescence spectroscopy. The nature of the hydrogen bonding interaction between the sensor and F¯ was established by ¹H-NMR studies and theoretical calculations. Moreover, the recovery of the sensor was achieved by addition of methanol.
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Affiliation(s)
- Jana Schiller
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany.
| | - Raúl Pérez-Ruiz
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany.
| | - Diego Sampedro
- Departamento de Química, Universidad de La Rioja, Madre de Dios, 51, Logroño 26006, Spain.
| | - Eugenia Marqués-López
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Zaragoza 50009, Spain.
| | - Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica, Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Zaragoza 50009, Spain.
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany.
- Instituto de Química Avanzada de Cataluña-Consejo Superior de Investigaciones Científicas (IQAC-CSIC), Jordi Girona 18-26, Barcelona 08034, Spain.
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23
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Bhattacharjee S, Bhattacharya S. Remarkable Role of C-I···N Halogen Bonding in Thixotropic 'Halo'gel Formation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4270-4277. [PMID: 26422750 DOI: 10.1021/acs.langmuir.5b02597] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Halogen-bonding-induced self-assembly in the solution of equimolar mixtures of certain pyridyl-ended oligo p-phenylenevinylene (OPV)-derivatives with 1,4-diiodotetrafluorobenzene is reported. The mode of self-assembly, that is, cocrystallization, thixotropic gelation, or precipitation, depends strongly on the nature of chains (n-alkyl chains as a function of length or short oxyethylene chain) appended to the OPV-backbone as well as on the cooling rate of the corresponding hot solution. Single-crystal X-ray diffraction studies of the cocrystals reveal the "infinite" chain formation via C-I···N halogen-bonding interactions between the two components. In addition, multiple noncovalent interactions induce cross-links among these halogen-bonded "infinite" chains. Interestingly, the molecular packing in the "Cogel" bearing OPV-derivative with oxyethylene chains is found to be very similar to that of the cocrystal of the same.
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Affiliation(s)
| | - Santanu Bhattacharya
- Director's Research Unit, Indian Association for the Cultivation of Science, Kolkata 700032, India
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24
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Ohsedo Y. Low-Molecular-Weight Gelators as Base Materials for Ointments. Gels 2016; 2:E13. [PMID: 30674145 PMCID: PMC6318696 DOI: 10.3390/gels2020013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 03/24/2016] [Indexed: 12/21/2022] Open
Abstract
Ointments have been widely used as an efficient means of transdermal drug application for centuries. In order to create ointments suitable for various new medicinal drugs, the creation of ointment base materials, such as gels, has attracted much research attention in this decade. On the other hand, the chemical tuning of low-molecular-weight gelators (LMWGs) has been increasingly studied for two decades because LMWGs can be tailored for different purposes by molecular design and modification. In this review, several series of studies related to the creation of ointment base materials with enhanced properties using existing and newly-created LMWGs are summarized.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory, Collaborative Research Division, Art, Science and Technology Center for Cooperative Research, Kyushu University, 6-1 Kasuga-koen, Kasuga-city, Fukuoka 816-8580, Japan.
- Comprehensive Research Organization, Fukuoka Institute of Technology, 3-30-1, Wajiro-Higashi, Higashi-ku, Fukuoka 811-0295, Japan.
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25
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Luisier N, Scopelliti R, Severin K. Supramolecular gels based on boronate esters and imidazolyl donors. SOFT MATTER 2016; 12:588-593. [PMID: 26506208 DOI: 10.1039/c5sm02298c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Dative boron-nitrogen bonds can be used for the controlled assembly of boronate esters and N-donor ligands. So far, most investigations have focused on crystalline assemblies. In contrast, there are very few reports about soft materials based on dative B-N bonds. Here, we describe the formation of gels by aggregation of diboronate esters and ditopic bisimidazolyl donor ligands. Analyses of low molecular weight model compounds by NMR spectroscopy, isothermal titration calorimetry, and X-ray crystallography reveal that imidazolyl ligands form particularly strong dative bonds with boronate esters. The strong interaction allows gel formation in competitive polar solvents such as THF and acetone. In less polar solvents, very low critical gel concentrations of down to 0.02 wt% are observed. By using a diboronate ester linked by an azobenzene group, it is possible to form a photoresponsive gel.
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Affiliation(s)
- N Luisier
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
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26
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Chen J, Wang T, Liu M. A hydro-metallogel of an amphiphilic l-histidine with ferric ions: shear-triggered self-healing and shrinkage. Inorg Chem Front 2016. [DOI: 10.1039/c6qi00238b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An amphiphilic l-histidine derivative was found to form a hydro-metallogel showing dual shrinkage and self-healing properties.
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Affiliation(s)
- Jie Chen
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Tianyu Wang
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
| | - Minghua Liu
- CAS Key Laboratory of Colloid
- Interface and Chemical Thermodynamics
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing
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27
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Phukan N, Baruah JB. Conformational adjustments over synthons of urea and thiourea based assemblies. CrystEngComm 2016. [DOI: 10.1039/c6ce01326k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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28
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Qian X, Gong W, Dhinakaran MK, Gao P, Na D, Ning G. Two bent-shaped π-organogelators: synthesis, fluorescence, self-assembly and detection of volatile acid vapours in gel films and in gel-gel states. SOFT MATTER 2015; 11:9179-9187. [PMID: 26417718 DOI: 10.1039/c5sm02206a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Two novel bent-shaped π-organogelators 6a and 6b having different terminal pyridine rings as responsive sites were designed, synthesized and fully characterized. A subtle difference in the position of the N atom at the pyridine ring greatly affected their fluorescence and gelation properties. 6b showed remarkably stronger fluorescence both in solution and in the solid state as compared to 6a. Theoretical calculation revealed a clear discrepancy in the electron distribution between them. Furthermore, driven by π–π stacking interaction and hydrophobic interaction, both 6a and 6b can gelate several organic solvents with different polarities. Rheological studies, spectroscopic tests and powder X-ray diffraction showed that 6a displayed a closer stacking mode leading to stronger gel robustness. The xerogel films of 6a and 6b were prepared and utilized to detect acid vapours. Both of them can fulfil the detection of acid vapours through a distinct fluorescence change which could be seen by the naked eye under a UV lamp, but with different sensing modes. A rare gel to gel transformation was also observed upon exposure to acid vapours accompanied by a morphological change.
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Affiliation(s)
- Xiaomin Qian
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 610023, P. R. China.
| | - Weitao Gong
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 610023, P. R. China.
| | - Manivannan Kalavathi Dhinakaran
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 610023, P. R. China.
| | - Peng Gao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 610023, P. R. China.
| | - Duo Na
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 610023, P. R. China.
| | - Guiling Ning
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 610023, P. R. China.
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29
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Senra JD, Viana GM, Malta LFB, Simas ABC, Aguiar LCS. Selectivity Studies Towards the Synthesis of Novel Biaryl Ureas by (Hetero)Nanocatalysis: Size Control and Support Effects. ChemCatChem 2015. [DOI: 10.1002/cctc.201500889] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jaqueline D. Senra
- Chemistry Institute; Universidade do Estdo do Rio de Janeiro; Rio de Janeiro, RJ 20550-900 Brazil
| | - Gil M. Viana
- Faculty of Pharmacy; Universidade Federal do Rio de Janeiro; Rio de Janeiro, RJ 21941-614 Brazil
| | - Luiz Fernando B. Malta
- Chemistry Institute; Universidade Federal do Rio de Janeiro; Rio de Janeiro, RJ 21941-903 Brazil
| | - Alessandro B. C. Simas
- Walter Mors Institute of Research on Natural Products; Universidade Federal do Rio de Janeiro; Rio de Janeiro, RJ 21941-614 Brazil
| | - Lucia C. S. Aguiar
- Chemistry Institute; Universidade Federal do Rio de Janeiro; Rio de Janeiro, RJ 21941-903 Brazil
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30
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Lascialfari L, Pescitelli G, Brandi A, Mannini M, Berti D, Cicchi S. Urea vs. carbamate groups: a comparative study in a chiral C2 symmetric organogelator. SOFT MATTER 2015; 11:8333-8341. [PMID: 26350644 DOI: 10.1039/c5sm01684c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The effect of the replacement of molecular moieties (carbamates vs. urea) that drive self-assembly for two organogelators with an identical C(2) symmetric molecular structure is described. The main properties of the gels obtained from the urea-based organogelators are also discussed. The proposed organogelators are chiral molecules and are able to express chirality also at the supramolecular level, thus allowing the employment of electronic circular dichroism to gain insight into the molecular-scale structure of fibrillar aggregates. With the same technique, the behavior of enantiomeric mixtures of the urea-based organogelators was investigated, revealing the occurrence of different self-sorting phenomena at the molecular and supramolecular scale. The urea-based organogelators demonstrated to be more efficient gelators with respect to the carbamate-based analogues, showing a high gel-to-sol transition temperature (up to 66 °C) and a very low minimum gelling concentration (0.85 mg mL(-1)). This study is a starting point for a deeper investigation of structure/property relationships and, taking into account the peculiar behavior detected for the enantiomeric mixtures, also of self-sorting and molecular recognition phenomena.
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Affiliation(s)
- Luisa Lascialfari
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| | - Gennaro Pescitelli
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Alberto Brandi
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| | - Matteo Mannini
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
| | - Debora Berti
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and CSGI Consortium, UdR Firenze, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Stefano Cicchi
- "Ugo Schiff" Chemistry Department, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Italy and INSTM Consortium, UdR Firenze, Via G. Giusti 9, 50121, Firenze, Italy
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Barker EC, Goh CY, Jones F, Mocerino M, Skelton BW, Becker T, Ogden MI. Investigating hydrogel formation using in situ variable-temperature scanning probe microscopy. Chem Sci 2015; 6:6133-6138. [PMID: 30090228 PMCID: PMC6054096 DOI: 10.1039/c5sc02196k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/02/2015] [Indexed: 11/21/2022] Open
Abstract
The assembly and disassembly of fibres formed by a low molecular weight hydrogelator are imaged at high resolution.
The assembly and disassembly of supramolecular gel fibres are observed in situ using variable temperature scanning probe microscopy. The results show that fibre formation can be monitored at high resolution at a surface, and the final fibre morphologies are broadly consistent with those found by ex situ analysis of the bulk gel. The impact of a gelation inhibitor upon the fibre morphology is successfully investigated, providing direct evidence for the mechanism of inhibition as a function of additive concentration.
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Affiliation(s)
- Emily C Barker
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Ching Yong Goh
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Franca Jones
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Mauro Mocerino
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Brian W Skelton
- Centre for Microscopy , Characterisation and Analysis , M310 , University of Western Australia , Perth , Western Australia 6009 , Australia
| | - Thomas Becker
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Mark I Ogden
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
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Miao W, Yang D, Liu M. Multiple-Stimulus-Responsive Supramolecular Gels and Regulation of Chiral Twists: The Effect of Spacer Length. Chemistry 2015; 21:7562-70. [DOI: 10.1002/chem.201500097] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 02/10/2015] [Indexed: 01/07/2023]
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34
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Novartis Chemistry Lectureship 2014/2015: R. Sarpong, A. Doyle, M. S. Sigman, F. Glorius, D. Trauner und K. R. Liedl / Karl-Heinz-Beckurts-Preis: A. Marx / Preis der Polymer Networks Group für Nachwuchswissenschaftler: D. Díaz Díaz, J. Groll, F. H. Schach. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500425] [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]
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35
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Novartis Chemistry Lectureship 2014-2015: R. Sarpong, A. Doyle, M. S. Sigman, F. Glorius, D. Trauner, and K. R. Liedl / Karl Heinz Beckurts Prize: A. Marx / Polymer Networks Group Young Investigator Award: D. Díaz Díaz, J. Groll, F. H. Schacher, and S. Se. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201500425] [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]
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36
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Sarkar S, Dutta S, Ray C, Dutta B, Chowdhury J, Pal T. A two-component hydrogelator from citrazinic acid and melamine: synthesis, intriguing role of reaction parameters and iodine adsorption study. CrystEngComm 2015. [DOI: 10.1039/c5ce01001b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Melamine and citrazinic acid, upon solid-state grinding, produced a two-component gelator which selectively gelates water or a mixed-solvent system having water as one of the solvents. The dried hydrogel was porous and shows adsorption and storage of molecular iodine.
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Affiliation(s)
- Sougata Sarkar
- Department of Chemistry
- Ramakrishna Mission Vivekananda Centenary College
- Kolkata 700118, India
| | - Soumen Dutta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302, India
| | - Chaiti Ray
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302, India
| | - Bipan Dutta
- Department of Physics
- Sammilani Mahavidyalaya
- Kolkata 700075, India
| | | | - Tarasankar Pal
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302, India
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37
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Ohsedo Y, Oono M, Saruhashi K, Watanabe H. A new water-soluble aromatic polyamide hydrogelator with thixotropic properties. RSC Adv 2015. [DOI: 10.1039/c5ra16824d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The water-soluble aromatic polyamide poly(3-sodium sulfo-p-phenylene terephthalamide) forms a hydrogel with anisotropy, which exhibits good thixotropic behaviour, even at the critical gel concentration of the gelator (1.0 wt%).
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Masashi Oono
- Nissan Chemical Industries, Ltd
- 2-10-1 Tsuboinishi, Funabashi
- Japan
| | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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38
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Zhang W, Gan SY, Li FH, Han DX, Zhang QX, Niu L. pH responding reversible supramolecular self-assembly of water-soluble amino-imidazole-armed perylene diimide dye for biological applications. RSC Adv 2015. [DOI: 10.1039/c4ra11124a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A water-soluble amino-imidazole-armed perylene diimide dye exhibits reversible supramolecular structure and fluorescence emission conversion upon external pH-stimulation.
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Affiliation(s)
- Wei Zhang
- Engineering Laboratory for Modern Analytical Techniques
- c/o State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Shi-Yu Gan
- Engineering Laboratory for Modern Analytical Techniques
- c/o State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Feng-Hua Li
- Engineering Laboratory for Modern Analytical Techniques
- c/o State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Dong-Xue Han
- Engineering Laboratory for Modern Analytical Techniques
- c/o State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Qi-Xian Zhang
- Engineering Laboratory for Modern Analytical Techniques
- c/o State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- PR China
| | - Li Niu
- Engineering Laboratory for Modern Analytical Techniques
- c/o State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry Chinese Academy of Sciences
- Changchun 130022
- PR China
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Ohsedo Y, Taniguchi M, Oono M, Saruhashi K, Watanabe H. Long-chain alkylamide-derived oil gels: mixing induced onset of thixotropy and application in sustained drug release. NEW J CHEM 2015. [DOI: 10.1039/c5nj00999e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oil gels composed of long-chain alkylamides exhibited thixotropic properties, although the same property was absent in each alkylamide.
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Affiliation(s)
- Yutaka Ohsedo
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | - Makiko Taniguchi
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
| | | | | | - Hisayuki Watanabe
- Advanced Materials Research Laboratory
- Collaborative Research Division, Art, Science and Technology Center for Cooperative Research
- Kyushu University
- Nishi-ku
- Japan
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40
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Miao W, Qin L, Yang D, Jin X, Liu M. Multiple-Stimulus-Responsive Supramolecular Gels of Two Components and Dual Chiroptical Switches. Chemistry 2014; 21:1064-72. [DOI: 10.1002/chem.201405406] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Indexed: 12/24/2022]
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41
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Yoshii Y, Hoshino N, Takeda T, Moritomo H, Kawamata J, Nakamura T, Akutagawa T. The Formation of Organogels and Helical Nanofibers from Simple Organic Salts. Chemistry 2014; 20:16279-85. [DOI: 10.1002/chem.201404043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Indexed: 11/08/2022]
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