The invertible electrochemical properties and thermal response of a series of gel-type ionic liquids based on polyoxometalates

Wu, Xiyong; Li, Yunyan; Wu, Qingyin; Ding, Hong

doi:10.1039/c4cp03673e

Cited by 9 publications

(6 citation statements)

References 41 publications

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“…The radius of gyration was determined from the angular dependence of the Rayleigh ratio according to the Guinier equation . The Rayleigh ratio R θ was obtained as follows

R_{θ} = \frac{I {(θ)}_{sample} - I {(θ)}_{water}}{I {(θ)}_{toluene}} \times R_{toluene} \times \frac{n_{water}^{2}}{n_{toluene}^{2}}

with a refractive index of solvent n water = 1.333, refractive index of reference n toluene = 1.494, and Rayleigh ratio of toluene R toluene = 1.02 × 10 −3 m −1 calculated as described by Wu …”

Section: Methodsmentioning

confidence: 99%

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and ¹⁹F MRI Applied to In Vivo Cell Tracking

Koshkina

Lajoinie

Bombelli

et al. 2019

Adv Funct Materials

110

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Ultrasound is the most commonly used clinical imaging modality. However, in applications requiring cell-labeling, the large size and short active lifetime of ultrasound contrast agents limit their longitudinal use. Here, 100 nm radius, clinically applicable, polymeric nanoparticles containing a liquid perfluorocarbon, which enhance ultrasound contrast during repeated ultrasound imaging over the course of at least 48 h, are described. The perfluorocarbon enables monitoring the nanoparticles with quantitative 19 F magnetic resonance imaging, making these particles effective multimodal imaging agents. Unlike typical core-shell perfluorocarbon-based ultrasound contrast agents, these nanoparticles have an atypical fractal internal structure. The nonvaporizing highly hydrophobic perfluorocarbon forms multiple cores within the polymeric matrix and is, surprisingly, hydrated with water, as determined from small-angle neutron scattering and nuclear magnetic resonance spectroscopy. Finally, the nanoparticles are used to image therapeutic dendritic cells with ultrasound in vivo, as well as with 19 F MRI and fluorescence imaging, demonstrating their potential for long-term in vivo multimodal imaging.

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“…The radius of gyration was determined from the angular dependence of the Rayleigh ratio according to the Guinier equation . The Rayleigh ratio R θ was obtained as follows

R_{θ} = \frac{I {(θ)}_{sample} - I {(θ)}_{water}}{I {(θ)}_{toluene}} \times R_{toluene} \times \frac{n_{water}^{2}}{n_{toluene}^{2}}

Section: Methodsmentioning

confidence: 99%

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and ¹⁹F MRI Applied to In Vivo Cell Tracking

Koshkina

Lajoinie

Bombelli

et al. 2019

Adv Funct Materials

110

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“…[17][18][19][20][21] Various hybrid gels were developed using POMs and ILs such as Nmethyl imidazolium-1-(3-sulfonic group) propyl (MIMPS), 3-(pyridine-1-ium-1-yl)propane-1-sulfonate (PyPs), 1-(3-sulfonic group) triethylamine (TEAPS) and N-propyl-N-methylpiperidinium hexauorophosphate. [22][23][24][25][26][27][28][29][30] Several heteropoly acids (HPAs) and polyvinylpyrrolidone (PVP) and polyethylene glycol (PEG) hybrids were also recently reported. 28 Herein, we report the synthesis and structural, chemical and electrochemical characterization of hybrid gel electrolytes based on recently developed 3-(pyridin-1-ium-1-yl)propane-1sulfonate (PyPs) 24 IL and H 3 PW 11 MoO 40 , H 4 PMo 11 VO 40 and H 5 PMo 11 V 2 O 40 for potential electrochemical energy conversion and storage applications.…”

Section: Introductionmentioning

confidence: 99%

The synthesis and electrical properties of hybrid gel electrolytes derived from Keggin-type heteropoly acids and 3-(pyridin-1-ium-1-yl)propane-1-sulfonate (PyPs)

2016

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“…Under the suitable stimulation, the mobility of IL-POM can be modulated, expressing the sol-gel transformation behaviors. [68][69][70][71][72] As shown in Figure 3a, IL cations, tributyldecylammonium (TBDA), tributyltetradecylammonium (TBTA), and tetraalkylphosphonium (TBTP), are selected to combine with vanadium-substituted Keggin polyanion, [SiW 11 VO 40 ] 5− , based on the electrostatic interaction between organic and inorganic components to form corresponding hybrids. [73] As a result, layered structures form with various layer-spacings, which depend on the sizes of the organic cations and are confirmed through the powder X-ray diffraction experiment.…”

Section: Poms and Ionic Liquidsmentioning

confidence: 99%

Polyoxometalate‐Containing Supramolecular Gels

Xuan

2022

Macromol. Rapid Commun.

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Supramolecular gels are important soft materials with various applications, which are fabricated through hydrogen bonding, π–π stacking, electrostatic interactions, or host–guest interactions. Introducing functional groups, especially inorganic components, is an efficient strategy to obtain gels with robust architecture and high performance. Polyoxometalates (POMs), as a class of negatively‐charged clusters, have defined structures and multiple interaction sites, resulting in their potential as building blocks for constructing POM‐containing supramolecular gels. The introduction of POMs into gels not only provides strong driving forces for the formation of gels due to the characteristics of charged cluster and oxygen‐rich surface, but also brings new properties sourcing from the unique electronic structures of POMs. Though many POM‐containing gels have been reported, a comprehensive review is still absent. Herein, the concept of POM‐containing gels is discussed, following with the design strategies and driving forces. To better understand the results in the literature, detailed examples, which are classified into several categories based on the types of organic components, are presented to illustrate the gelation process and gel structures. Moreover, applications of POM‐containing gels in energy chemistry, sustainable chemistry, and other aspects are also reviewed, as well as the future developments of this field.

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The invertible electrochemical properties and thermal response of a series of gel-type ionic liquids based on polyoxometalates

Cited by 9 publications

References 41 publications

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and ¹⁹F MRI Applied to In Vivo Cell Tracking

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and ¹⁹F MRI Applied to In Vivo Cell Tracking

The synthesis and electrical properties of hybrid gel electrolytes derived from Keggin-type heteropoly acids and 3-(pyridin-1-ium-1-yl)propane-1-sulfonate (PyPs)

Polyoxometalate‐Containing Supramolecular Gels

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The invertible electrochemical properties and thermal response of a series of gel-type ionic liquids based on polyoxometalates

Cited by 9 publications

References 41 publications

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and 19F MRI Applied to In Vivo Cell Tracking

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and 19F MRI Applied to In Vivo Cell Tracking

The synthesis and electrical properties of hybrid gel electrolytes derived from Keggin-type heteropoly acids and 3-(pyridin-1-ium-1-yl)propane-1-sulfonate (PyPs)

Polyoxometalate‐Containing Supramolecular Gels

Contact Info

Product

Resources

About

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and ¹⁹F MRI Applied to In Vivo Cell Tracking

Multicore Liquid Perfluorocarbon‐Loaded Multimodal Nanoparticles for Stable Ultrasound and ¹⁹F MRI Applied to In Vivo Cell Tracking