1
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Chakraborty A, Dey G. Conformations and tautomerisation between (Z)-4-(hydroxyethyl) isochroman-1, 3-dione and and 4-acetyl-3-hydroxyisochroman-1-one: A computational study through Energy, electron Distribution, vibrational analysis and hardness profiles. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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2
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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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3
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Wang M, Wang A, Li J, Li Q, Bai S. Thermolysin-triggered short peptides self-assembly in confined space and application in cell culturing. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Mineart KP, Walker WW, Mogollon‐Santiana J, Lee B. A Fourier transform infrared spectroscopy‐
based
method for tracking diffusion in organogels. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Kenneth P. Mineart
- Department of Chemical Engineering Bucknell University Lewisburg Pennsylvania USA
| | - William W. Walker
- Department of Chemical Engineering Bucknell University Lewisburg Pennsylvania USA
| | | | - Byeongdu Lee
- X‐ray Science Division, Argonne National Laboratory Lemont Illinois USA
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5
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Vendrell-Criado V, Angulo-Pachón CA, Miravet JF, Galindo F, Miranda MA, Jiménez MC. Photobehavior of the antipsychotic drug cyamemazine in a supramolecular gel protective environment. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2020; 202:111686. [PMID: 31731078 DOI: 10.1016/j.jphotobiol.2019.111686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/25/2019] [Accepted: 11/05/2019] [Indexed: 01/07/2023]
Abstract
In this work, a molecular hydrogel made of gelator (S)-4-((3-methyl-1-(nonylamino)-1-oxobutan-2-yl)amino)-4-oxobutanoic acid (SVN) has been employed as soft container to modify the photochemical and photophysical behavior of the antipsychotic drug cyamemazine (CMZ). The interaction of CMZ with the gel network has been evidenced by fluorescence spectroscopy through a hypsochromic shift of the emission band (from λmax = 521 nm in solution to λmax = 511 nm in the gel) and an increase of the fluorescence lifetime (5.6 ns in PBS vs. 7.2 ns in the gel). In the laser flash photolysis experiments on CMZ/SVN systems, the CMZ triplet excited state (3CMZ*), monitored at λ = 320 nm, has been more efficiently generated and became much longer-lived than in solution (2.7 μs vs. 0.7 μs); besides, photochemical ionization leading to the radical cation CMZ+• was disfavored. In the steady-state experiments, photooxidation of CMZ to afford the N,S-dioxide derivative CMZ-SONO has been retarded in the gel, which provides a more lipophilic and constrained microenvironment. Both the photophysical properties and the photoreactivity are in agreement with CMZ located in a less polar domain when entrapped in the supramolecular gel, as result of the interaction of the drug with the fibers of the supramolecular SVN gel.
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Affiliation(s)
- Victoria Vendrell-Criado
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
| | - César A Angulo-Pachón
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n, 12071, Castellón, Spain
| | - Juan F Miravet
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n, 12071, Castellón, Spain
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n, 12071, Castellón, Spain
| | - Miguel A Miranda
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
| | - M Consuelo Jiménez
- Departamento de Química/Instituto de Tecnología Química UPV-CSIC, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain.
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6
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Maiti B, Abramov A, Pérez-Ruiz R, Díaz Díaz D. The Prospect of Photochemical Reactions in Confined Gel Media. Acc Chem Res 2019; 52:1865-1876. [PMID: 31016963 DOI: 10.1021/acs.accounts.9b00097] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nature is intrinsically able to control kinetics, conversion, and selectivity of biochemical processes by means of confined reaction environments such as enzyme pockets, bilayer membranes, micelles, vesicles, cells, or bioorganic frameworks. The main reason for this fact is the optimal molecular alignment and restricted motion of reactant molecules compared to those found in bulk solution. Under this inspiration, a number of synthetic photo-nanoreactors based on supramolecular self-assembled systems have been developed during the last decades, including mesoporous inorganic materials, microemulsions, micelles, vesicles, lipid bilayer foams, polyelectrolyte nanoparticles, etc. In a broader sense, nanoreactor technology constitutes nowadays a promising tool to enhance organic synthesis under sustainable reaction conditions. In general, nanoreactors change the essential properties of the molecules within them, thus affecting their chemical reactivity. Among the nanoreactor-like systems described in the literature to facilitate photochemical processes, the more recent use of viscoelastic supramolecular gels, typically made of low-molecular-weight (LMW) compounds self-assembled through noncovalent interactions, as compartmentalized reaction media is particularly appealing due to the versatility of these materials in terms of fabrication, properties, and processability. Furthermore, the high specific surface areas found in supramolecular gels, their stimuli-responsive reversibility, good diffusion properties enhancing the interactions between reactants and the three-dimensional (3D) porous network, functional tunability, and blocking effect of external oxygen are some of the most important features that can benefit photoinduced processes carried out in confined gel media. Not surprisingly, the efficiency of photochemical processes inside gel media is largely dependent on the type of reaction, characteristics of the gel network, solvent nature, reactant properties, and reaction conditions. Thus, the main focus of this Account is to provide a concise overview of the most relevant examples reported by us and others in order to illustrate the main advantages associated with the emerging use of gel-based materials as nonconventional reaction media to facilitate and control photochemical reactions. In particular, photodimerization, triplet-triplet annihilation upconversion (TTA-UC) coupled to single electron transfer (SET), photooxidation, photoreduction, and trifluoromethylation reactions will be illustrated during the discussion. These examples suggest that gel-based media can provide a versatile platform for the discovery of new reaction pathways and facilitate the way that photochemical reactions are traditionally carried out in academia and industry in terms of reaction conditions and required infrastructure. In addition, the use of physical or chemical gels as reaction systems may also accelerate high-throughput screening of photocatalysts. Overall, a judicious choice of gelators, reactants, solvent, and reaction conditions for the assembly of these gelators is crucial for controlling conversion, kinetics, and selectivity of intragel photoinduced processes.
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Affiliation(s)
- Binoy Maiti
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Alex Abramov
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, 93053 Regensburg, Germany
| | - Raúl Pérez-Ruiz
- Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, 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, La Laguna, 38206 Tenerife Spain
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7
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Arnau del Valle C, Felip-León C, Angulo-Pachón CA, Mikhailov M, Sokolov MN, Miravet JF, Galindo F. Photoactive Hexanuclear Molybdenum Nanoclusters Embedded in Molecular Organogels. Inorg Chem 2019; 58:8900-8905. [DOI: 10.1021/acs.inorgchem.9b00916] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Carla Arnau del Valle
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avenida Sos Baynat s/n, Castellón 12071, Spain
| | - Carles Felip-León
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avenida Sos Baynat s/n, Castellón 12071, Spain
| | - César A. Angulo-Pachón
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avenida Sos Baynat s/n, Castellón 12071, Spain
| | - Maxim Mikhailov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Prospekt Akademika Lavrent’yeva, Novosibirsk 630090, Russia
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Prospekt Akademika Lavrent’yeva, Novosibirsk 630090, Russia
| | - Juan F. Miravet
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avenida Sos Baynat s/n, Castellón 12071, Spain
| | - Francisco Galindo
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avenida Sos Baynat s/n, Castellón 12071, Spain
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8
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Dawn A. Supramolecular Gel as the Template for Catalysis, Inorganic Superstructure, and Pharmaceutical Crystallization. Int J Mol Sci 2019; 20:E781. [PMID: 30759781 PMCID: PMC6387271 DOI: 10.3390/ijms20030781] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/07/2019] [Accepted: 02/11/2019] [Indexed: 12/12/2022] Open
Abstract
A supramolecular gel is a fascinating combination of flexibility and orderliness. While the supramolecular nature of crosslinking contributes towards the adaptivity and the reversibility of the system, orderliness at the molecular level amplifies the functional output and induces extraordinary selectivity into the system. Therefore, use of supramolecular gels as the soft template is an emerging area of research, which includes but not limited to catalysis of a chemical or a photochemical process, transcription of gel property to a substrate, or even controlling the nucleation of drug molecules. This review aims to highlight the template effect of supramolecular gels in the above-mentioned areas relevant to novel fundamental chemistry, technology, and healthcare.
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Affiliation(s)
- Arnab Dawn
- James Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267-0514, USA.
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9
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Abramov A, Vernickel H, Saldías C, Díaz Díaz D. Metal- and Oxidant-Free Photoinduced Aromatic Trifluoromethylation Performed in Aerated Gel Media: Determining the Effects on Yield and Selectivity. Molecules 2018; 24:E29. [PMID: 30577645 PMCID: PMC6337463 DOI: 10.3390/molecules24010029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/14/2018] [Accepted: 12/17/2018] [Indexed: 11/16/2022] Open
Abstract
In this work we have investigated the potential benefits of using supramolecular gel networks as reaction media to carry out air-sensitive metal-free light-induced trifluoromethylation of six-membered (hetero)arenes under aerobic conditions. This reaction was performed at room temperature (RT) using sodium triflinate (CF₃SO₂Na, Langlois' reagent) as a source of radicals and diacetyl as electron donor. The effects of confinement in gel media, concentration of reactants, and type of light source on yield and product distribution were evaluated and compared to the results obtained in homogeneous solution. Four different low molecular weight (LMW) gelators were employed in this study. The results confirmed the blocking effect of the gel medium against reaction quenching by external oxygen, as well as a certain control on the kinetics and selectivity.
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Affiliation(s)
- Alex Abramov
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany.
| | - Hendrik Vernickel
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany.
| | - César Saldías
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 302, Santiago Correo 22, Chile.
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany.
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain.
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10
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Hata Y, Sawada T, Serizawa T. Macromolecular crowding for materials-directed controlled self-assembly. J Mater Chem B 2018; 6:6344-6359. [PMID: 32254643 DOI: 10.1039/c8tb02201a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Macromolecular crowding refers to intracellular environments where various macromolecules, including proteins and nucleic acids, are present at high total concentrations. Its influence on biological processes has been investigated using a highly concentrated in vitro solution of water-soluble polymers as a model. Studies have revealed significant effects of macromolecular crowding on the thermodynamic equilibria and dynamics of biomolecular self-assembly in vivo. Recently, macromolecular crowding has attracted materials scientists, especially those in bio-related areas, as a tool to control molecular/colloidal self-assembly. Macromolecular crowding has been exploited to control the structure of supramolecular materials, assemble nanomaterials, and improve the performance of polymeric materials. Furthermore, nanostructured materials have been shown to be an interesting alternative to water-soluble polymers for creating crowded environments for controlled self-assembly. In this review article, we summarize recent progress in research on macromolecular crowding for controlled self-assembly in bio-related materials chemistry.
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Affiliation(s)
- Yuuki Hata
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H121 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
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11
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Häring M, Abramov A, Okumura K, Ghosh I, König B, Yanai N, Kimizuka N, Díaz Díaz D. Air-Sensitive Photoredox Catalysis Performed under Aerobic Conditions in Gel Networks. J Org Chem 2018; 83:7928-7938. [PMID: 29808679 DOI: 10.1021/acs.joc.8b00797] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marleen Häring
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Alex Abramov
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Keisuke Okumura
- Kyushu University, Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), 744 Motooka, Nishi-Ku, 810-0395 Fukuoka, Japan
| | - Indrajit Ghosh
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Burkhard König
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Nobuhiro Yanai
- Kyushu University, Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), 744 Motooka, Nishi-Ku, 810-0395 Fukuoka, Japan
| | - Nobuo Kimizuka
- Kyushu University, Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems (CMS), 744 Motooka, Nishi-Ku, 810-0395 Fukuoka, Japan
| | - David Díaz Díaz
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
- IQAC−CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain
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12
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Lee JH, Jung SH, Lee SS, Kwon KY, Sakurai K, Jaworski J, Jung JH. Ultraviolet Patterned Calixarene-Derived Supramolecular Gels and Films with Spatially Resolved Mechanical and Fluorescent Properties. ACS NANO 2017; 11:4155-4164. [PMID: 28358496 DOI: 10.1021/acsnano.7b00997] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Supramolecular assemblies have in the past been considered mechanically weak and in most cases unable to withstand their own weight. Calixarene-derived networks can, however, provide robust supramolecular gels. Incorporating a photoreactive stilbene moiety, we show that the aggregation state of the material can be tuned by heating and UV exposure in order to control the mechanical as well as the fluorescent properties. Regulating the extent of heating to control the proportion of H-aggregates and J-aggregates and further cross-linking of H-aggregates by control over UV exposure allows for adjustable photopatterning of the fluorescence as well as the material stiffness in the range from ∼100 to 450 kPa. We expect this straightforward supramolecular system will be suitable for advanced prototyping in applications where modulus and shape are important design criteria.
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Affiliation(s)
- Ji Ha Lee
- Department of Chemistry and Research Institute of National Sciences, Gyeongsang National University , Jinju, Korea
- Department of Chemistry and Biochemistry, The University of Kitakyushu , Hibikino, Kitakyushu 808-0135, Japan
| | - Sung Ho Jung
- Department of Chemistry and Research Institute of National Sciences, Gyeongsang National University , Jinju, Korea
| | - Shim Sung Lee
- Department of Chemistry and Research Institute of National Sciences, Gyeongsang National University , Jinju, Korea
| | - Ki-Young Kwon
- Department of Chemistry and Research Institute of National Sciences, Gyeongsang National University , Jinju, Korea
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry, The University of Kitakyushu , Hibikino, Kitakyushu 808-0135, Japan
| | - Justyn Jaworski
- Department of Bioengineering, University of Texas, Arlington , Arlington, Texas 76010, United States
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of National Sciences, Gyeongsang National University , Jinju, Korea
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13
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Kuo SY, Liu CY, Balamurugan R, Zhang YS, Fitriyani S, Liu JH. Dual-responsive ALS-type organogelators based on azobenzene–cholesteryl conjugates and their self-assemblies. NEW J CHEM 2017. [DOI: 10.1039/c7nj03059b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Azobenzene and cholesteryl based derivatives (N2 and N4) were designed as gelators and their aggregation mechanism is proposed. These gelators are thermally reversible, however optically irreversible.
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Affiliation(s)
- Sheng-Yang Kuo
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Chun-Yen Liu
- School of Optometry and Vision Science Program
- UC Berkeley
- Berkeley
- USA
| | - Rathinam Balamurugan
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Yan-Song Zhang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Sri Fitriyani
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
| | - Jui Hsiang Liu
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 70101
- Republic of China
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14
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Mun G, Choi H, Im N, Ahn J, Park J, Seo H, Choi Y, Lee JH, Jung JH. Retracted Article: Spatially resolved mechanical properties of photo-responsive azobenzene-based supramolecular gels. RSC Adv 2017. [DOI: 10.1039/c7ra03797j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The mechanical properties of azobenzene-based gelators were finely controlled by UV irradiation.
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Affiliation(s)
- Gyuri Mun
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Heekyoung Choi
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Nayoung Im
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Junho Ahn
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Jaehyeon Park
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Hyowon Seo
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Yeonweon Choi
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
| | - Ji Ha Lee
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
- Department of Chemistry and Biochemistry
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Sciences
- Gyeongsang National University
- Jinju 660-701
- Korea
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15
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Zhang Q, Wang Y, Xing C, Cai Y, Xi K, Jia X. Light and force dual-responsive waterborne polyurethane in multiple states. RSC Adv 2017. [DOI: 10.1039/c7ra00156h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel SP-WPU presents UV light and force dual-responsive properties in both dispersed state and solid state. The environmental friendly material provides an alternative to extend the application for smart coatings and textiles in industry.
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Affiliation(s)
- Qiuhong Zhang
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210023
- P. R. China
- Department of Polymer Science and Engineering
| | - Yikai Wang
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210023
- P. R. China
- Department of Polymer Science and Engineering
| | - Chong Xing
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210023
- P. R. China
- Department of Polymer Science and Engineering
| | - Yifeng Cai
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210023
- P. R. China
- Department of Polymer Science and Engineering
| | - Kai Xi
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210023
- P. R. China
| | - Xudong Jia
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing 210023
- P. R. China
- Department of Polymer Science and Engineering
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16
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Basu K, Baral A, Basak S, Dehsorkhi A, Nanda J, Bhunia D, Ghosh S, Castelletto V, Hamley IW, Banerjee A. Peptide based hydrogels for cancer drug release: modulation of stiffness, drug release and proteolytic stability of hydrogels by incorporating d-amino acid residue(s). Chem Commun (Camb) 2016; 52:5045-8. [PMID: 26987440 DOI: 10.1039/c6cc01744d] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Synthetic tripeptide based noncytotoxic hydrogelators have been discovered for releasing an anticancer drug at physiological pH and temparature. Interestingly, gel stiffness, drug release capacity and proteolytic stability of these hydrogels have been successfully modulated by incorporating d-amino acid residues, indicating their potential use for drug delivery in the future.
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Affiliation(s)
- Kingshuk Basu
- Department of Biological Chemistry, Indian Association for The Cultivation of Science, Jadavpur, Kolkata, 700032, India.
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17
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Muñoz Resta I, Manzano VE, Cecchi F, Spagnuolo CC, Cukiernik FD, Di Chenna PH. Supramolecular Assembly of pH-Sensitive Triphenylene Derived π-Gelators and Their Application as Molecular Template for the Preparation of Silica Nanotubes. Gels 2016; 2:gels2010007. [PMID: 30674139 PMCID: PMC6318639 DOI: 10.3390/gels2010007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 01/14/2016] [Accepted: 01/22/2016] [Indexed: 12/30/2022] Open
Abstract
The gelation properties and mode of self-assembly of six asymmetrical hexaether triphenylene derivatives mono-functionalized with carboxylic and primary amine groups were investigated. The presence of a carboxylic and amine group attached to the triphenylene core generated stable, thermo- and pH-sensitive supramolecular π-organogels with a reversible response to both stimuli. In order to understand the gelation process, we studied the effect of the spacer length and found a different gelation scope for the acid and basic derivatives that accounts for a different supramolecular self-assembly. The presence of the basic group on the amino derivatives was used to guide and catalyze the templated in situ sol-gel polymerization of TEOS and allowed us, under controlled hydrolytic conditions, to prepare an entangled fibrillar network of silica nanotubes.
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Affiliation(s)
- Ignacio Muñoz Resta
- UMYMFOR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, pabellón 2, C. Universitaria, CABA, C1428EGA Buenos Aires, Argentina.
| | - Verónica E Manzano
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, pabellón 2, C. Universitaria, CABA, C1428EGA Buenos Aires, Argentina.
| | - Florencia Cecchi
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, pabellón 2, C. Universitaria, CABA, C1428EGA Buenos Aires, Argentina.
| | - Carla C Spagnuolo
- CIHIDECAR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, pabellón 2, C. Universitaria, CABA, C1428EGA Buenos Aires, Argentina.
| | - Fabio D Cukiernik
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, pabellón 2, C. Universitaria, CABA, C1428EGA Buenos Aires, Argentina.
| | - Pablo H Di Chenna
- UMYMFOR-CONICET, Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, pabellón 2, C. Universitaria, CABA, C1428EGA Buenos Aires, Argentina.
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Häring M, Pérez-Ruiz R, Jacobi von Wangelin A, Díaz DD. Intragel photoreduction of aryl halides by green-to-blue upconversion under aerobic conditions. Chem Commun (Camb) 2015; 51:16848-51. [PMID: 26438215 DOI: 10.1039/c5cc06917c] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The first proof of concept for the application of intragel green-to-blue photon upconversion to a chemical reaction is reported. The developed method allows the photoreduction of aryl halides at room temperature under aerobic conditions.
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Affiliation(s)
- Marleen Häring
- Institute of Organic Chemistry, University of Regensburg, Universitaetsstr. 31, 93040 Regensburg, Germany.
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