Development of zirconia nanoparticles-decorated calcium alginate hydrogel fibers for extraction of organophosphorous pesticides from water and juice samples: Facile synthesis and application with elimination of matrix effects

Zare, Maryam; Ramezani, Zahra; Rahbar, Nadereh

doi:10.1016/j.chroma.2016.10.071

Cited by 42 publications

(17 citation statements)

References 49 publications

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“…It is mainly their gelling properties that are at the origin of their industrial applications. Due to this ability to form stable hydrogels, alginates can encapsulate different materials (15), which can strengthen their adsorption properties or confer them other properties, such as, for example, magnetic properties when magnetic nanoparticles are trapped in the polymer matrix (16)(17)(18)(19). Therefore, alginate is currently a hot topic for environmental research and many polymer nanocomposites are developed for applications in this field (20)(21)(22)(23)(24).…”

Section: Introductionmentioning

confidence: 99%

pH-sensitive magnetic alginate/γ-Fe2O3 nanoparticles for adsorption/desorption of a cationic dye from water

Talbot

Abramson

Griffete

et al. 2018

Journal of Water Process Engineering

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pH-sensitive magnetic alginate/γ-Fe2O3 nanoparticles for adsorption/desorption of a cationic dye from water. Journal of Water Process Engineering, Elsevier, 2018, 25, pp. AbstractIn this study, magnetic alginate nanoparticles (AlgMNP) were synthesized using a simple and green two-step method, which can be easily developed on an industrial scale. First, coprecipitation of both ferric and ferrous ions in alkaline medium followed by oxidation of magnetite into maghemite leads to a stable colloidal dispersion called ferrofluid. A sodium alginate solution was then added to the ferrofluid in order to obtain the magnetic nanocomposite. This approach combines the advantages of a biopolymer with magnetic properties of the maghemite nanoparticles. The morphology, structure, size and composition of the magnetic nanoparticles were characterized by means of atomic absorption spectrometry, transmission electron microscopy, X-ray diffraction, Fourier-transform-infrared spectroscopy and thermogravimetric analysis. Adsorption is one of the most efficient treatments for the removal of pollutants from wastewater. But the development of efficient and environmental friendly adsorbent still remains challenging. Using AlgMNP as a magnetic adsorbent could be a suitable response to this challenge. Its adsorption efficiency was investigated by using methylene blue as pollutant. The effects of pH, contact time, and initial concentration of the dye on adsorption were investigated. The high adsorption capacity with respect to the dye in a wide pH range (273 mg/g) was explained by the way magnetic nanoparticles bind to the alginate chains. We assumed an organization with alginate strands decorated by the magnetic nanoparticles leaving the adsorption sites of the particles more accessible rather than a configuration with a complete coating of magnetic nanoparticles by alginate. The reusability was successfully demonstrated through 10 adsorption/desorption cycles.

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Section: Introductionmentioning

confidence: 99%

pH-sensitive magnetic alginate/γ-Fe2O3 nanoparticles for adsorption/desorption of a cationic dye from water

Talbot

Abramson

Griffete

et al. 2018

Journal of Water Process Engineering

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“…By functionalizing nanoparticle surfaces, the interaction between a polymer and nanoparticles can be strengthened [11][12][13]. Various types of metal nanoparticles have been used in the production of nanocomposite hydrogels in the field of biomaterials including gold [14], silver [15] and other noble metal nanoparticles, while metal oxide nanoparticles such as iron oxide [16] and zirconia [17] have also been used. Since metal and metal oxide nanoparticles possess the desired electrical conductivity, magnetic properties, and antibacterial properties, nanocomposite hydrogels that contain metal or metal oxide nanoparticles are widely used in conductive scaffolds, electronic switches, actuators, and sensors [18][19][20][21].…”

Section: Metal Nanoparticlesmentioning

confidence: 99%

Incorporation of Conductive Materials into Hydrogels for Tissue Engineering Applications

Min¹,

Koh²

2018

Preprint

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In the field of tissue engineering, conductive hydrogels have been the most effective biomaterials to mimic the biological and electrical properties of tissues in the human body. The main advantages of conductive hydrogel include not only its physical properties, but also its adequate electrical properties, thus providing electrical signals to cells efficiently. However, when introducing a conductive material into a non-conductive hydrogel, a conflicting relationship between the electrical and mechanical properties may develop. This review examines the strengths and weaknesses of the generation of conductive hydrogels using various conductive materials and introduces the use of these conductive hydrogels in tissue engineering applications.

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“…Other modified MSPE with Fe 3 O 4 including coated carbon nanotubes has been utilized for water or fruit juice extraction of GC-amenable pesticides [99,101]. Zirconia nanoparticle-decorated calcium alginate hydrogel fibers have been used for extraction of OPs from water and fruit juices [102].…”

Section: Ideas and Applications Toward Sample Preparation For Food Anmentioning

confidence: 99%

Sample Preparation Methods for Pesticide Analysis in Food Commodities, Biological and Environment Matrices

Raina‐Fulton¹,

Xie²

2017

Ideas and Applications Toward Sample Preparation for Food and Beverage Analysis

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This chapter focuses on sample preparation procedures for pesticide analysis of food commodities, biological and environmental matrices. This will include pesticides with a broad range of polarity including those that are more amenable to gas chromatographymass spectrometry (organochlorines, organophosphorus pesticides, and pyrethroids) and those commonly analyzed by liquid chromatography-mass spectrometry (carbamates, azole, and strobilurin fungicides, and phenylureas as well as organophosphorus pesticides). QuEChERS (quick, easy, cheap, effective, rugged, and safe) methods or QuEChERS methods with modifications to allow wetting of the dry sample matrix, buffering, changing extraction solvent from acetonitrile to ethyl acetate are examined. Subsequent cleanup using dispersive solid phase extraction or cartridge format solid phase extraction has also been completed to reduce matrix effects. Other solid matrices are frequently extracted with pressurized liquid extraction, microwave assisted extraction, or ultrasonic extraction combined with or followed by dispersive solid phase extraction or solid phase extraction. Particularly for chromatography-mass spectrometry, careful consideration of matrix effects needs to be made when considering the design of the sample preparation procedures. Selection of extraction solvent needs to consider both polarity of target analytes (and their solubility in selected solvents) as well as co-extracted matrix components.

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Development of zirconia nanoparticles-decorated calcium alginate hydrogel fibers for extraction of organophosphorous pesticides from water and juice samples: Facile synthesis and application with elimination of matrix effects

Cited by 42 publications

References 49 publications

pH-sensitive magnetic alginate/γ-Fe2O3 nanoparticles for adsorption/desorption of a cationic dye from water

pH-sensitive magnetic alginate/γ-Fe2O3 nanoparticles for adsorption/desorption of a cationic dye from water

Incorporation of Conductive Materials into Hydrogels for Tissue Engineering Applications

Sample Preparation Methods for Pesticide Analysis in Food Commodities, Biological and Environment Matrices

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