Adsorption of folic acid, riboflavin, and ascorbic acid from aqueous samples by Fe<sub>3</sub>O<sub>4</sub>magnetic nanoparticles using ionic liquid as modifier

Kamran, Sedigheh; Asadi, Mozaffar; Absalan, Ghodratollah

doi:10.1039/c3ay41543k

Cited by 27 publications

(7 citation statements)

References 43 publications

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“…The surface function group of the MoS 2 and MSIOs were characterized by FT-IR spectra as shown in Figure 2 h. The curve of MoS 2 nanoflakes with typical peaks at 1100, 1630, and 2880 cm -1 are attribute to C-O-C, C-O and C-H bond vibration in PEG 43 , revealing that PEG was successfully modified on the surface of MoS 2 . For the MSIOs, the Fe-O bond peak of the Fe 3 O 4 NPs is observed at 570 cm -1 44 . In addition, two typical peaks at 1589 and 1033 cm -1 are attributed to the alkene double bond and OH bond vibrations in carboxyl group 45 , illustrating that the AA was also located on the surface of the MSIOs.…”

Section: Resultsmentioning

confidence: 98%

Smart MoS₂/Fe₃O₄ Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Yu¹,

Yin²,

Zheng³

et al. 2015

Theranostics

242

136

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The ability to selectively destroy cancer cells while sparing normal tissue is highly desirable during the cancer therapy. Here, magnetic targeted photothermal therapy was demonstrated by the integration of MoS2 (MS) flakes and Fe3O4 (IO) nanoparticles (NPs), where MoS2 converted near-infrared (NIR) light into heat and Fe3O4 NPs served as target moiety directed by external magnetic field to tumor site. The MoS2/Fe3O4 composite (MSIOs) functionalized by biocompatible polyethylene glycol (PEG) were prepared by a simple two-step hydrothermal method. And the as-obtained MSIOs exhibit high stability in bio-fluids and low toxicity in vitro and in vivo. Specifically, the MSIOs can be applied as a dual-modal probe for T2-weighted magnetic resonance (MR) and photoacoustic tomography (PAT) imaging due to their superparamagnetic property and strong NIR absorption. Furthermore, we demonstrate an effective result for magnetically targeted photothermal ablation of cancer. All these results show a great potential for localized photothermal ablation of cancer spatially/timely guided by the magnetic field and indicated the promise of the multifunctional MSIOs for applications in cancer theranostics.

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Section: Resultsmentioning

confidence: 98%

Smart MoS₂/Fe₃O₄ Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Yu¹,

Yin²,

Zheng³

et al. 2015

Theranostics

242

136

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“…ILs [45,46] orIL-based surfactants [25,27].The use of high ionic strength can be accomplished only when Fe 3 O 4 coated with silica (Fe 3 O 4 @SiO 2 ) is used, but requires an additional step in the preparation of the material [24,47]. which the addition of salts has a negative effect in the extraction efficiency [25,27,45,46]). The MIL-based microextraction method is therefore clearly valid for aqueous samples with a high salt content.…”

Section: Mil-based Microextraction Methodsmentioning

confidence: 99%

Magnetic ionic liquids as non-conventional extraction solvents for the determination of polycyclic aromatic hydrocarbons

Trujillo−Rodríguez

Nacham

Clark

et al. 2016

Analytica Chimica Acta

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This work describes the applicability of magnetic ionic liquids (MILs) in the analytical determination of a group of heavy polycyclic aromatic hydrocarbons. Three different MILs, namely, benzyltrioctylammonium bromotrichloroferrate (III) (MIL A), methoxybenzyltrioctylammonium bromotrichloroferrate (III) (MIL B), and 1,12-di(3-benzylbenzimidazolium) dodecane bis[(trifluoromethyl)sulfonyl)]imide bromotrichloroferrate (III) (MIL C), were designed to exhibit hydrophobic properties, and their performance examined in a microextraction method for hydrophobic analytes. The magnet-assisted approach with these MILs was performed in combination with high performance liquid chromatography and fluorescence detection. The study of the extraction performance showed that MIL A was the most suitable solvent for the extraction of polycyclic aromatic hydrocarbons and under optimum conditions the fast extraction step required ∼20 μL of MIL A for 10 mL of aqueous sample, 24 mmol L(-1) NaOH, high ionic strength content of NaCl (25% (w/v)), 500 μL of acetone as dispersive solvent, and 5 min of vortex. The desorption step required the aid of an external magnetic field with a strong NdFeB magnet (the separation requires few seconds), two back-extraction steps for polycyclic aromatic hydrocarbons retained in the MIL droplet with n-hexane, evaporation and reconstitution with acetonitrile. The overall method presented limits of detection down to 5 ng L(-1), relative recoveries ranging from 91.5 to 119%, and inter-day reproducibility values (expressed as relative standard derivation) lower than 16.4% for a spiked level of 0.4 μg L(-1) (n = 9). The method was also applied for the analysis of real samples, including tap water, wastewater, and tea infusion.

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“…Many techniques were applied in the remediation of pharmaceuticals from aqueous medium, including photocatalytic degradation , membranes , ozonation , Fenton process , electrochemical techniques , reverse osmosis , chemical precipitation , advanced oxidation processes , adsorption , etc. Scientists have studied the adsorption and remediation of pharmaceuticals using several adsorbents .…”

Section: Introductionmentioning

confidence: 99%

Fixed‐Bed and Batch Adsorption of Pharmaceuticals from Aqueous Solutions on Ionic Liquid‐Modified Montmorillonite

Lawal

Moodley

2018

Chem Eng & Technol

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Batch and column adsorption of four pharmaceuticals, namely, tetracycline (TC), sulfamethoxazole (SMZ), nalidixic acid (NAD), and chloramphenicol (CHL) on ionic liquid modified montmorillonite (Mt‐IL) was evaluated. The effects of variation in pH and contact time were analyzed and the data were fitted to kinetics and isotherm models. The equilibrium experimental data were best explained by the Freundlich model. A pseudo second‐order kinetic model described all pharmaceuticals adsorbed on Mt‐IL. In column studies, the exchange zone depth, adsorption capacity, the required time for the pharmaceuticals to move through the height of the adsorbent in the column, and adsorption rates were investigated by the Yoon‐Nelson and the Thomas and Adams‐Bohart models.

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Adsorption of folic acid, riboflavin, and ascorbic acid from aqueous samples by Fe₃O₄magnetic nanoparticles using ionic liquid as modifier

Cited by 27 publications

References 43 publications

Smart MoS₂/Fe₃O₄ Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Smart MoS₂/Fe₃O₄ Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Magnetic ionic liquids as non-conventional extraction solvents for the determination of polycyclic aromatic hydrocarbons

Fixed‐Bed and Batch Adsorption of Pharmaceuticals from Aqueous Solutions on Ionic Liquid‐Modified Montmorillonite

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Adsorption of folic acid, riboflavin, and ascorbic acid from aqueous samples by Fe3O4magnetic nanoparticles using ionic liquid as modifier

Cited by 27 publications

References 43 publications

Smart MoS2/Fe3O4 Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Smart MoS2/Fe3O4 Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Magnetic ionic liquids as non-conventional extraction solvents for the determination of polycyclic aromatic hydrocarbons

Fixed‐Bed and Batch Adsorption of Pharmaceuticals from Aqueous Solutions on Ionic Liquid‐Modified Montmorillonite

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Adsorption of folic acid, riboflavin, and ascorbic acid from aqueous samples by Fe₃O₄magnetic nanoparticles using ionic liquid as modifier

Smart MoS₂/Fe₃O₄ Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging

Smart MoS₂/Fe₃O₄ Nanotheranostic for Magnetically Targeted Photothermal Therapy Guided by Magnetic Resonance/Photoacoustic Imaging