Magnetic nanocomposite of chitosan-Schiff base grafted graphene oxide for lead analysis in whole blood

Seidi, Shahram; Majd, Mahshid; Rezazadeh, Maryam; Shanehsaz, Maryam

doi:10.1016/j.ab.2018.05.018

Cited by 17 publications

(3 citation statements)

References 44 publications

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“…Then immune-magnetic GO composites were synthesized through the interaction of anti-EpCAM antibodies and anti-lgG antibodies. In addition, the chitosan could also be used as the bridge for a non-covalent combination between graphene oxides (GOs) with Fe 3 O 4 nanoparticles [13][14][15]. Others noncovalent bonds, including van der Waals interaction, π-π staking, electrostatic interactions and hydro bonding were also used to building MGCs [10,[16][17][18][19][20].…”

Section: Non-covalent Assembly Methodsmentioning

confidence: 99%

Functional Magnetic Graphene Composites for Biosensing

Huang

et al. 2020

IJMS

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Magnetic graphene composites (MGCs), which are composed of magnetic nanoparticles with graphene or its derivatives, played an important role in sensors development. Due to the enhanced electronic properties and the synergistic effect of magnetic nanomaterials and graphene, MGCs could be used to realize more efficient sensors such as chemical, biological, and electronic sensors, compared to their single component alone. In this review, we first reviewed the various routes for MGCs preparation. Then, sensors based on MGCs were discussed in different groups, including optical sensors, electrochemical sensors, and others. At the end of the paper, the challenges and opportunities for MGCs in sensors implementation are also discussed.

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Section: Non-covalent Assembly Methodsmentioning

confidence: 99%

Functional Magnetic Graphene Composites for Biosensing

Huang

et al. 2020

IJMS

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“…Seidi et al [ 60 ] synthesized magnetic chitosan-salen grafted GO for lead analysis in whole blood using dispersive SPE coupled with FAAS detection. The proposed Schiff base ligand was synthesized using a mixture of salicylaldehyde and 1,3-diamino-2-propanol in a 2:1 molar ratio.…”

Section: Preconcentration Of Pb(ii) For Analytical Applicationsmentioning

confidence: 99%

Preconcentration and Removal of Pb(II) Ions from Aqueous Solutions Using Graphene-Based Nanomaterials

Pyrzyńska

2023

Materials

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Direct determination of lead trace concentration in the presence of relatively complex matrices is often a problem. Thus, its preconcentration and separation are necessary in the analytical procedures. Graphene-based nanomaterials have attracted significant interest as potential adsorbents for Pb(II) preconcentration and removal due to their high specific surface area, exceptional porosities, numerous adsorption sites and functionalization ease. Particularly, incorporation of magnetic particles with graphene adsorbents offers an effective approach to overcome the separation problems after a lead enrichment step. This paper summarizes the developments in the applications of graphene-based adsorbents in conventional solid-phase extraction column packing and its alternative approaches in the past 5 years.

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“…The adsorbents are apt to separate from sample matrixes under the help of a magnet, which simplify the preparation procedure and effectively avoid the tedious centrifugation steps. Due to the remarkable advantages of convenience and efficiency, MSPE has become the most popular method for sample pre‐treatment in recent years . Nevertheless, the strategy of using MSPE to enrich parabens still needs to be developed .…”

Section: Introductionmentioning

confidence: 99%

Self‐assembly of poly(ionic liquid) functionalized mesoporous magnetic microspheres for the solid‐phase extraction of preservatives from milk samples

Gao

Wang

Yan

et al. 2019

J of Separation Science

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In this work, a novel, rapid, and simple analytical method was proposed for the detection of parabens in milk sample by gas chromatography coupled with mass spectrometry. At the same time, milk sample was pretreated by magnetic solid phase extraction, which detected up to five parabens. A series of important parameters of magnetic solid phase extraction were investigated and optimized, such as pH value of loading buffer, amount of material, adsorption time, ionic strength, eluting solvents, and eluting time. Under the optimized conditions, the corresponding values were more than 0.9991, limits of detection and the limit of quantification were 0.1 and 0.5 ng/mL, respectively. In addition, the recoveries were achieved in range of 95–105%, the liner range were within 0.1–600 ng/mL, and the relative standard deviations were even lower than 5%.

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Magnetic nanocomposite of chitosan-Schiff base grafted graphene oxide for lead analysis in whole blood

Cited by 17 publications

References 44 publications

Functional Magnetic Graphene Composites for Biosensing

Functional Magnetic Graphene Composites for Biosensing

Preconcentration and Removal of Pb(II) Ions from Aqueous Solutions Using Graphene-Based Nanomaterials

Self‐assembly of poly(ionic liquid) functionalized mesoporous magnetic microspheres for the solid‐phase extraction of preservatives from milk samples

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