Gotowe bibliografie tematyczne / Photoluminescent supramolecular hydrogels

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Gotowa bibliografia na temat „Photoluminescent supramolecular hydrogels”

Autor: Grafiati

Data publikacji: 6 września 2023

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Artykuły w czasopismach na temat "Photoluminescent supramolecular hydrogels"

Gu, Lianghong, Xue Liu, Shumin Dong, Zhijun Chen, Rui Han, Chao He, Dongsheng Wang i Yonghao Zheng. "Natural lignin nanoparticles: a promising nano-crosslinker for constructing fluorescent photoswitchable supramolecular hydrogels". Polymer Chemistry 11, nr 11 (2020): 1871–76. http://dx.doi.org/10.1039/c9py01845j.

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Photoswitchable and photoluminescent ternary supramolecular hydrogels were fabricated by host–guest and ionic interactions between polyacrylic acid, azobenzene guanidine and α-cyclodextrin grafted cellulolytic enzyme lignin nanoparticles.

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Akriche, Samah, Aymen Tliba i Mohamed Rzaigui. "Crystal Growth and Characterization of the Non-Centrosymmetric Hydrated Co-hexaborate templated by racemic 2-methylpiperazinium (C5H14N2){Co[B6O7(OH)6]2}.2H2O". JOURNAL OF ADVANCES IN CHEMISTRY 10, nr 3 (4.04.2014): 2377–87. http://dx.doi.org/10.24297/jac.v10i3.2288.

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Large single crystals of the non-centrosymmetric hydrated Co-hexaborate (C5H14N2){Co[B6O7(OH)6]2}.2H2O were grown from aqueous solution and characterized by powder and single-crystal XRD methods, IR, UV-Vis and photoluminescence spectroscopy measurements. Single-crystal XRD analyses show that the reported compound crystallizes in the orthorhombic non-centrosymmetric space group Fdd2 and its crystal structure consists of anionic molecular Co-hexaborate units arranged into 3D-supramolecular honey-comb like structure network with the organic cation and water of crystallization occupying large tunnels voids along [110] through strong hydrogen bond interactions. In addition, Its electronic properties have also been investigated showing a considerable important gap energy well proving the semiconductor behavior and the photoluminescent property of reported material.

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Shimosaraya, Noritaka, Taichi Sotani, Yu Miyagi, Evan Angelo Quimada Mondarte, Kasinan Suthiwanich, Tomohiro Hayashi, Yuuya Nagata, Hiromitsu Sogawa i Fumio Sanda. "Tyrosine-based photoluminescent diketopiperazine supramolecular aggregates". Soft Matter 18, nr 1 (2022): 137–45. http://dx.doi.org/10.1039/d1sm01206a.

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A solution of l-tyrosine diketopiperazine in tetrahydrofuran turned into gel state based on intermolecular hydrogen bonding, resulting in π-orbital overlap of the terminal phenyl groups leading to photoluminescence.

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Soussi, Imen, Sameh Aoun, Aurelien Planchat i Samah Akriche. "Hydrothermal Synthesis, Characterization and Photoluminescent Properties of a New Vanadium Substituted Keggin Assembly Supported by Ni Complex". JOURNAL OF ADVANCES IN CHEMISTRY 10, nr 1 (10.06.2014): 2182–96. http://dx.doi.org/10.24297/jac.v10i1.5592.

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A new monosubstituted vanadium Keggin-type tungstophosphate derivative, [Ni(phen)3]2[PVW11O40].4H2O (phen = 1,10’-phenanthroline), has been hydrothermally synthesized and characterized by powder and single-crystal XRD methods, scanning electron microscopy (SEM), IR, UV-Vis and photoluminescence spectroscopy measurements. X-ray diffraction analysis reveals that the compound crystallizes in the monoclinic system with space group C2/c with a = 19.659 (2) Å, b = 18.054 (3) Å, c = 25.227 (4) Å and β = 100.63 (2)° and its crystal packing displays alternating [PV1W11O40(H2O)4]n4- ribbons extending along [110] and [10] respectively at z = 0 and z = ½. These ribbons are extended into a 3D supramolecular framework by hydrogen-bonding interactions generating vacant 1D-channels along c-axis leading to anchorage of transition metal complexes. Moreover, the electronic properties and the optical band gaps have also been investigated well confirming the semiconductor behavior and photoluminescent property of reported material.

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Sun, Di, Cheng-Feng Yang, Zhan-Hua Wei, Geng-Geng Luo, Na Zhang, Qin-Juan Xu, Rong-Bin Huang i Lan-Sun Zheng. "Self-assembly of a Novel Three-dimensional Silver(I) Supramolecular Framework from Cationic Chains and Anionic Sheets". Zeitschrift für Naturforschung B 65, nr 2 (1.02.2010): 152–56. http://dx.doi.org/10.1515/znb-2010-0209.

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A new three-dimensional (3D) supramolecular framework, [Ag2(bipy)2(bdc)·4H2O]n 1, has been synthesized by the ultrasonic reaction of Ag2O, bipy and H2bdc (H2bdc = 1,4-benzenedicarboxylic acid; bipy = 4,4’-bipyridine) at room temperature. It exhibits a new 3D supramolecular framework which is built from cationic Ag-bipy chains and anionic bdc-H2O sheets through hydrogen bonds, π · · ·π stacking and C-H· · ·π interactions. Additionally, the photoluminescent and thermal properties of 1 were investigated.

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Wang, Linlin, Jie Zhou, Lei Li i Shengyu Feng. "Poly(β-hydroxyl amine)s: Valuable Building Blocks for Supramolecular Elastomers with Tunable Mechanical Performance and Superior Healing Capacity". Polymers 14, nr 4 (11.02.2022): 699. http://dx.doi.org/10.3390/polym14040699.

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Supramolecular elastomers integrated with high mechanical toughness and excellent self-healing ability offer attractive applications in various fields such as biomedical materials and wearable electronics. However, the multistep preparation process for creating functional polymer precursors and the expensive stock materials required are two factors that limit the widespread use of supramolecular elastomers. Herein, for the first time, poly(β-hydroxyl amine)s generated by amine-epoxy polymerization were used in the development of supramolecular polymer materials. Based on the novel silicon-containing poly(β-hydroxyl amine)s synthesized by the polymerization between 1,3-bis(3-glycidyloxypropyl)tetramethyldisiloxane and 3-amino-1,2-propanediol, dually cross-linked supramolecular elastomers with both hydrogen bonding and metal coordination were achieved, displaying adjustable mechanical properties with the tensile strength varying from 0.70 MPa to 2.52 MPa, respectively. Thanks to the dynamic nature of the supramolecular interactions, these elastomers exhibited favorable hot-pressing reprocessability and excellent self-healing performance, with the healing efficiency reaching up to 98% at 60 °C for 48 h. Potential applications for photoluminescent materials and flexible electronic devices were demonstrated. We believe that its simplicity of synthesis, adjustable mechanical properties, and robust self-healing capacities bode well for future applications of this new supramolecular elastomer.

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Xu, Yun, Qing-Hua Deng, Fang Ding, Ran An, Dong Liu i Ti-Fang Miao. "Three New Supramolecular Coordination Polymers Based on 1H-pyrazolo[3,4-b]pyridin-3-amine and 1,3-benzenedicarboxylate Derivatives". Polymers 11, nr 5 (7.05.2019): 819. http://dx.doi.org/10.3390/polym11050819.

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Three new supramolecular coordination polymers, namely [Zn(1,3-BDC)(HL)]n (Polymer 1), [Zn3(1,3,5-BTC)2(HL)2(H2O)2]n (Polymer 2), and [Zn9(5-SO3-1,3-BDC)2(L)8(OH)4]n (Polymer 3), were synthesized under solvothermal conditions, based on 1H-pyrazolo[3,4-b]pyridin-3-amine (HL) along with 1,3-benzenedicarboxylate (1,3-BDC) and its derivatives, such as 1,3,5-benzenetricarboxylate (1,3,5-BTC) and 5-sulfo-1,3-benzenedicarboxylate (5-SO3-1,3-BDC). Polymers 1–3 were characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD), and single crystal X-ray diffraction analysis. Polymer 1 exhibited a two-dimensional (2D) 4-connected sql net. The neighboring 2D nets were further linked into a 3D supramolecular network by hydrogen-bonding interactions. Polymer 2 displayed a 3D (4, 4, 4)-connected network, which was further stabilized by R 2 2 (14) and S(9) hydrogen-bonding rings along with π–π interactions. The 2D sheet structure of Polymer 3 was constructed by novel quasi-linear nonanuclear Zn(II) units, which further extended into a 3D supramolecular structure by hydrogen-bonding interactions. The solid-state photoluminescence properties of Polymers 1–3 were also investigated.

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Ghosh, Dipankar, Oddný Ragnarsdóttir, Daníel Arnar Tómasson i Krishna K. Damodaran. "Solid-State Structural Transformation and Photoluminescence Properties of Supramolecular Coordination Compounds". Symmetry 13, nr 1 (11.01.2021): 112. http://dx.doi.org/10.3390/sym13010112.

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The combination of strong coordination bonds and hydrogen bonding interactions were used to generate a series of supramolecular coordination materials (SCMs), which was achieved by reacting a bis-pyridyl amide ligand, namely N-(4-pyridyl)nicotinamide (4PNA) with copper(II), zinc(II), and cadmium(II) benzoates. The SCMs were structurally characterized using X-ray diffraction and the key intermolecular interactions were identified via Hirshfeld surface analysis. The role of solvent molecules on the supramolecular architecture was analyzed by synthesizing the SCMs in different solvents/solvent mixtures. A solvent-mediated solid-state structural transformation was observed in copper(II) SCMs and we were able to isolate the intermediate form of the crystal-to-crystal transformation process. The luminescence experiments revealed that complexation enhanced the fluorescence properties of 4PNA in the zinc(II) and cadmium(II) SCMs, but a reverse phenomenon was observed in the copper(II) SCMs. This work demonstrated the tuning of supramolecular assembly in coordination compounds as a function of solvents for generating SCMs with diverse properties.

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Mei, Chong-Zhen, Kai-Hui Li i Hai-Hua Li. "Assembly of a Flexible 2,2ʹ-Oxydibenzoate and Silver(I) Ions to a Novel 3D Supramolecular Framework: Syntheses, Structure and Properties". Zeitschrift für Naturforschung B 67, nr 11 (1.11.2012): 1191–96. http://dx.doi.org/10.5560/znb.2012-0212.

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Self-assembly of silver(I) cations, flexible 2,2ʹ-oxydibenzoate anions (L2-), and 1,2-bis(4- pyridyl)ethane (bpa) ligands affords a new three-dimensional supramolecular architecture, {[Ag2(L)(bpa)2]⋅(H2O)4}n (1), which has been characterized by elemental analysis, IR, TGA, PXRD, and single-crystal X-ray diffraction. Complex 1exhibits layers further connected through hydrogen bonding and π...π stacking interactions. Its photoluminescence was also investigated.

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Rozprawy doktorskie na temat "Photoluminescent supramolecular hydrogels"

Bhowmik, Dipankar. "Diverse Applications of Luminescent Metallocholate Hydrogels". Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5823.

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Supramolecular gels are soft materials consisting of a solid three-dimensional network with noncovalent interactions such as hydrophobic interactions, hydrogen bonding, cation-п, and п- п interactions. Due to their soft, solid-like nature, tunable properties, and easy processability, these gels have found myriad applications. Photoluminescent supramolecular hydrogels have attracted the immense attention of researchers due to their extensive application in many areas for example diagnosis, bioimaging, electronics, and analytical purpose. Lanthanide-based photoluminescent probes have been extensively studied for their unique photophysical properties including narrow emission bands, large Stokes shifts, and long excited-state lifetime. In this thesis, we have integrated lanthanides with bile salts to form supramolecular metallogels with stimuli-responsive properties, and as a matrix for sensitive detection of various small molecules. This work also presents a user-friendly, low-cost approach to sensing analytes using gel immobilized ‘paper-based sensors’ with the potential to serve as a sensitive and rapid detector of analytes. Additionally, a concise chemical strategy has been developed to obtain room temperature organic phosphorescence and delayed fluorescence in the supramolecular hydrogel system.
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