Magnetic solid-phase extraction of malachite green using soluble eggshell membrane protein doped with magnetic graphene oxide nanocomposite

Musevi, Seyid Javad; Mohammad‐Rezaei, Rahim; Razmi, Habib

doi:10.1080/03067319.2018.1543420

Cited by 10 publications

(3 citation statements)

References 28 publications

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“…Polyamidoamine (PAMAM) dendrimer has been used to develop amino-terminated hyper-branched PAMAM polymer grafted magnetic graphene oxide nanosheets for the MSPE of selective serotonin reuptake inhibitors from plasma samples [78]. Due to the large number of terminal groups of polyamidoamine dendrimer, the structural characteristics as well as the internal spaces between their branches, which can trap the target analyte, the functionalized GO/Fe 3 O 4 sorbent exhibited higher extraction efficiency compared to the conventional GO/Fe 3 O 4 nanocomposite.…”

Section: Functionalized Nanocomposites Of Go With Fe 3 O 4 Nanoparticlesmentioning

confidence: 99%

Magnetic Solid-Phase Extraction of Organic Compounds Based on Graphene Oxide Nanocomposites

et al. 2020

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Graphene oxide (GO) is a chemical compound with a form similar to graphene that consists of one-atom-thick two-dimensional layers of sp2-bonded carbon. Graphene oxide exhibits high hydrophilicity and dispersibility. Thus, it is difficult to be separated from aqueous solutions. Therefore, functionalization with magnetic nanoparticles is performed in order to prepare a magnetic GO nanocomposite that combines the sufficient adsorption capacity of graphene oxide and the convenience of magnetic separation. Moreover, the magnetic material can be further functionalized with different groups to prevent aggregation and extends its potential application. Until today, a plethora of magnetic GO hybrid materials have been synthesized and successfully employed for the magnetic solid-phase extraction of organic compounds from environmental, agricultural, biological, and food samples. The developed GO nanocomposites exhibit satisfactory stability in aqueous solutions, as well as sufficient surface area. Thus, they are considered as an alternative to conventional sorbents by enriching the analytical toolbox for the analysis of trace organic compounds.

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Section: Functionalized Nanocomposites Of Go With Fe 3 O 4 Nanoparticlesmentioning

confidence: 99%

Magnetic Solid-Phase Extraction of Organic Compounds Based on Graphene Oxide Nanocomposites

et al. 2020

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“…A single molecule is tethered to a surface at one end and attached to a magnetic bead at the other; the bead is manipulated via external permanent magnets and/or electromagnets. Magnetic tweezers have been widely used to study mechanical and elastic properties of nucleic acids, [29][30][31][32][33] DNA dynamics, [34] DNA/protein interactions, [35][36][37][38]torsional properties of DNA, [39][40][41], DNA/protein complexes and RNA/protein interaction [42,43]. Also MT may use to interact between +ssRNA like m RNA and spike protein of beta-type SARS-CoV-2 in the presence of PEG and PEI coated magnetic NPs.…”

Section: Magnetic Tweezersmentioning

confidence: 99%

Possible Therapeutic Approach Against Covid-19 by Application of Magnetic Field

Islam¹,

Ahsan²

2020

AJN

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A new pandemic named as COVID-2019 (coronavirus disease 2019) has stunned the world. The reason behind this type of pandemic is severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which is similar to SARS CoV's epidemiology, genomics, and pathogens. This novel coronavirus (SARS-CoV-2) is causing the mainly pneumonia-associated respiratory syndrome, result in the death of human being which is increasing rapidly day by day. The current efforts of the scientist (both physical and biological) in the world is to invent specific antiviral drugs and physical therapeutic against COVID-19. Hence we have tried to discuss in this note how physical therapy may develope against COVID-19. To neutralize +ssRNA, M (membrane)-protein and spike protein-containing into SARS-CoV-2 magnetic field can play a vital role in the presence of nontoxic magnetic nanoparticles. To apply a magnetic field into the SARS-CoV-2, magnetic trap instrument called magnetic tweezers may be used where nontoxic magnetic nanoparticles act as a magnetic bead which alters the orientation of +ssRNA. At the same time, magnetic nanoparticles interacts with M-protein, result in fragmentation of spike protein. We expect that this therapy will be a more effective challenge to control the current pandemic and the possible re-emergence of the SARS-CoV-2 virus in the future.

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“…Nano-adsorbents are good candidates for the adsorption of chemical species because of their large specific surface area, pore-volume, and maximum adsorption capacity (10,(26)(27)(28)(29). Zinc oxide NPs are reported as good nanoadsorbents in this regard; hence, several studies have used these compounds as good photocatalytic material and adsorbent, but due to agglomeration of ZnO NPs, it is necessary to use substrates, such as GO, zeolites, and the other organic polymers (30)(31)(32)(33)(34)(35)(36)(37)(38)(39). Meanwhile, the application of inorganic substrates is favored because of less toxicity and ease of preparation compared to the organic substrates (9).…”

Section: Introductionmentioning

confidence: 99%

Cheap Nano-Adsorbents Based on Zno/Mineral Nanocomposites for Removal of Chloroform from Water Solution

Salehi-Babarsad

Derikvand

Razaz

et al. 2020

Jundishapur J Health Sci

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Background: Chloroform, as a hazardous chemical, can contaminate water resources via the reaction of chlorine as an antiseptic chemical with humic acids resulted from agricultural activities. In humans, chloroform may cause dizziness, heart disorders, and disorders of the nervous system. Hence, its removal is of crucial importance. Objectives: The current study aimed to propose cheap and efficient adsorbents to remove chloroform from water. Methods: Four different nanomaterials (ZnO, ZnO/graphene oxide (ZnO/GO), ZnO/GO/Zeolite, and GO/Zeolite nanocomposites) were prepared and characterized with X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) images. Textural properties of the nano- adsorbents were evaluated using Brunauer Emmet Teller (BET) and Barrett-Joyner-Halenda (BJH) techniques. Different isotherms and kinetic models were studied. The effect of pH on the removal efficiency of the nano-adsorbents was tested. Regenerability of the nano-adsorbents towards the removal of the chloroform was also evaluated. Results: XRD patterns and FESEM images of the nanocomposites confirmed lattice structures and nanoscale particle size of the prepared nanocomposites. According to the BET and BJH models, all samples had mesoporous structures. The BJH cumulative surface area of pores of ZnO, ZnO/GO, ZnO/GO/Zeolite, and GO/Zeolite nanocomposites were 8.5, 26.4, 17.2, and 20.8 m2/g, respectively. The best removal speed and efficiency were obtained according to the different isotherm and kinetic models for the removal of chloroform ZnO/GO nanocomposites. All adsorbents revealed characteristic adsorption in the pH range of 7 to 8. Conclusion: The ZnO/GO, a cheap and efficient nanocomposite, showed the best performance to remove chloroform from water samples due to its superior textural property. Hence, it can be used to remove chloroform from water for up to 5 cycles.

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Magnetic solid-phase extraction of malachite green using soluble eggshell membrane protein doped with magnetic graphene oxide nanocomposite

Cited by 10 publications

References 28 publications

Magnetic Solid-Phase Extraction of Organic Compounds Based on Graphene Oxide Nanocomposites

Magnetic Solid-Phase Extraction of Organic Compounds Based on Graphene Oxide Nanocomposites

Possible Therapeutic Approach Against Covid-19 by Application of Magnetic Field

Cheap Nano-Adsorbents Based on Zno/Mineral Nanocomposites for Removal of Chloroform from Water Solution

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