Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor

Lyu, Young Ku; Kyung, Kyu Jin; Lee, Won Yong

doi:10.1016/j.synthmet.2008.11.021

Cited by 10 publications

(1 citation statement)

References 25 publications

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“…In this regard, G-based magnetic nanocomposites were used as MSPE sorbents for removal or extraction of organic contaminants from different samples [3,[26][27][28][29][30][31][32][33]. However, G/Fe 3 O 4 may have lower adsorption capacity than G for some analyte(s) (especially hydrophobic compounds), because of the occupation of some of the active sites on the G sheets by Fe 3 O 4 nanoparticles [5,34]. Therefore, coating of a suitable material on the G/Fe 3 O 4 can be a good offer to recover the high adsorption capacity of the G, and also induce to it long service life and good stability toward organic solvent, acidic and alkaline solutions.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of graphene/Fe3O4@polythiophene nanocomposite and its application in the magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from environmental water samples

Mehdinia

Khodaee

Jabbari

2015

Analytica Chimica Acta

129

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Section: Introductionmentioning

confidence: 99%

Fabrication of graphene/Fe3O4@polythiophene nanocomposite and its application in the magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from environmental water samples

Mehdinia

Khodaee

Jabbari

2015

Analytica Chimica Acta

129

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Functionalized Nanoparticles and Chitosan-Based Functional Nanomaterials

Dutta

Srivastava

Dutta

2012

Multifaceted Development and Application of Biopolymers for Biology, Biomedicine and Nanotechnology

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Highly porous magnetite/graphene nanocomposites for a solid-state electrochemiluminescence sensor on paper-based chips

Xia

et al. 2012

Anal Bioanal Chem

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Graphene-nanosheet-based highly porous magnetite nanocomposites (GN-HPMNs) have been prepared using a simple solvothermal method and used as an immobilization matrix for the fabrication of a solid-state electrochemiluminescence (ECL) sensor on paper-based chips. Highly porous Fe3O4 nanocrystal clusters were coated with acrylate and wrapped tightly on the skeleton of graphene nanosheets. The structures and sizes of the GN-HPMNs could be tuned by varying the proportions of the solvents ethylene glycol and diethylene glycol. Then, the relatively highly porous ones with an average diameter of about 65 nm were combined with Nafion to form composite films on an electrode surface for immobilization of Ru(bpy)3(2+) (bpy is 2,2'-bipyridine). Because of their porosity, negatively charged surface, and cooperative characteristics of magnetic nanomaterials and graphene, under an external magnetic field, the GN-HPMNs ensured effective immobilization, excellent electron transfer, and long-term stability of Ru(bpy)3(2+) in the composite film. The sensor developed exhibited excellent reproducibility with a relative standard deviation of 0.65% for 30 continuous cycles. It was found to be much more favorable for detecting compounds containing tertiary amino groups and DNAs with guanine and adenine. A detection limit (signal-to-noise ratio of 3) of 5.0 nM was obtained for tripropylamine. As an application example, 0.5 nM single-nucleotide mismatch could be detected. This was the first attempt to introduce magnetic nanomaterials and an external magnetic field into paper-based chips. The sensor developed has the advantages of high sensitivity, good stability, and wide potential applicability as well as simplicity, low cost, and good disposability.

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Functionalized magnetic nanoparticle with poly(3-thiopheneacetic acid) and its application for electrogenerated chemiluminescence sensor

Cited by 10 publications

References 25 publications

Fabrication of graphene/Fe3O4@polythiophene nanocomposite and its application in the magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from environmental water samples

Fabrication of graphene/Fe3O4@polythiophene nanocomposite and its application in the magnetic solid-phase extraction of polycyclic aromatic hydrocarbons from environmental water samples

Functionalized Nanoparticles and Chitosan-Based Functional Nanomaterials

Highly porous magnetite/graphene nanocomposites for a solid-state electrochemiluminescence sensor on paper-based chips

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