Carbon-coated magnetic nanoparticles as a removable protection layer extending the operation lifetime of bilirubin oxidase-based bioelectrode

We synthesized carbon-coated iron magnetic nanoparticles by a low cost method using Ferric nitrate as the iron precursor and starch as both reductive agent and carbon source under H2 atmosphere. The structure, size distribution, phase composition, magnetic properties and oxidation resistance of the particles were investigated by transmission electron microscopy, X-ray diffraction, vibrating sample magnetometry and differential scanning calorimetry. The results show that the carbon-coated iron nanoparticles are spherical particles with a diameter of 20-40 nm. They are particles of core-shell structure with an iron core inside and an onion skin carbon layer outside, carbon layer can protect inner iron core from been oxidized, the hysteresis curves show that they are super paramagnetic materials. At the same time the annealing can change the magnetic properties of carbon coated iron nanoparticles.

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Novel Ceramic Carbon-Coated Magnetic Nanoparticles as Stir Bar Sorptive Extraction Coating for Simultaneous Extraction of Amphetamines from Urine Samples

Arabian Journal for Science and Engineering ◽

10.1007/s13369-019-03810-0 ◽

2019 ◽

Vol 44 (7) ◽

pp. 6373-6380 ◽

Cited By ~ 7

Author(s):

Arezou Taghvimi ◽

Siavoush Dastmalchi ◽

Yousef Javadzadeh

Keyword(s):

Magnetic Nanoparticles ◽

Stir Bar Sorptive Extraction ◽

Urine Samples ◽

Simultaneous Extraction ◽

Sorptive Extraction ◽

Carbon Coated

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Dispersive solid phase extraction of chlorophenols using carbon-coated magnetic nanoparticles

Toxicological and Environmental Chemistry ◽

10.1080/02772248.2019.1693573 ◽

2019 ◽

Vol 101 (3-6) ◽

pp. 190-203

Author(s):

Mehwish Iqbal ◽

Jasmin Shah ◽

Muhammad Rasul Jan ◽

Muhammad Zeeshan

Keyword(s):

Magnetic Nanoparticles ◽

Solid Phase Extraction ◽

Solid Phase ◽

Phase Extraction ◽

Dispersive Solid Phase Extraction ◽

Carbon Coated

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Electrochemistry of norepinephrine on carbon-coated nickel magnetic nanoparticles modified electrode and analytical applications

Bioelectrochemistry ◽

10.1016/j.bioelechem.2009.09.011 ◽

2010 ◽

Vol 79 (1) ◽

pp. 1-5 ◽

Cited By ~ 43

Author(s):

Chunli Bian ◽

Qingxiang Zeng ◽

Huayu Xiong ◽

Xiuhua Zhang ◽

Shengfu Wang

Keyword(s):

Magnetic Nanoparticles ◽

Modified Electrode ◽

Analytical Applications ◽

Carbon Coated

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Characterization of carbon-coated magnetic nanoparticles using clinical blood coagulation assays: effect of PEG-functionalization and comparison to silica nanoparticles

Journal of Materials Chemistry B ◽

10.1039/c4tb00208c ◽

2014 ◽

Vol 2 (24) ◽

pp. 3753-3758 ◽

Cited By ~ 10

Author(s):

Lukas Bircher ◽

Oliver M. Theusinger ◽

Silvan Locher ◽

Philipp Eugster ◽

Birgit Roth-Z'graggen ◽

...

Keyword(s):

Magnetic Nanoparticles ◽

Blood Coagulation ◽

Human Blood ◽

Point Of Care ◽

Blood Samples ◽

Coagulation Assays ◽

Carbon Coated ◽

Human Blood Samples ◽

Peg Functionalization

We use point-of-care-assays to study blood coagulation in human blood samples exposed to nanomagnets.

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Carbon coated magnetic nanoparticles as supports in microwave-assisted palladium catalyzed Suzuki-Miyaura couplings

nano Online ◽

10.1515/nano.0015.00001 ◽

2016 ◽

Author(s):

Sebastian Wittmann ◽

Jean-Pierre Majoral ◽

Robert N. Grass ◽

Wendelin J. Stark ◽

Oliver Reiser

Keyword(s):

Magnetic Nanoparticles ◽

Microwave Assisted ◽

Carbon Coated ◽

Palladium Catalyzed

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Radio-frequency induced in vitro thermal ablation of cancer cells by EGF functionalized carbon-coated magnetic nanoparticles

Journal of Materials Chemistry ◽

10.1039/c1jm10569h ◽

2011 ◽

Vol 21 (34) ◽

pp. 12761 ◽

Cited By ~ 16

Author(s):

Alokita Karmakar ◽

Yang Xu ◽

Meena W. Mahmood ◽

Yongbin Zhang ◽

Lamya Mohammed Saeed ◽

...

Keyword(s):

Magnetic Nanoparticles ◽

Radio Frequency ◽

Cancer Cells ◽

Thermal Ablation ◽

Carbon Coated

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Carbon coated magnetic nanoparticles as a novel magnetic solid phase extraction adsorbent for simultaneous extraction of methamphetamine and ephedrine from urine samples

Journal of Chromatography B ◽

10.1016/j.jchromb.2016.11.039 ◽

2017 ◽

Vol 1041-1042 ◽

pp. 113-119 ◽

Cited By ~ 24

Author(s):

Arezou Taghvimi ◽

Hamed Hamishehkar

Keyword(s):

Magnetic Nanoparticles ◽

Solid Phase Extraction ◽

Solid Phase ◽

Magnetic Solid Phase Extraction ◽

Urine Samples ◽

Phase Extraction ◽

Simultaneous Extraction ◽

Carbon Coated ◽

Magnetic Solid

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Langmuir Layers of Magnetic Nanoparticles

MRS Proceedings ◽

10.1557/proc-877-s4.3 ◽

2005 ◽

Vol 877 ◽

Cited By ~ 1

Author(s):

Sara A. Majetich ◽

Madhur Sachan ◽

Shihai Kan ◽

Yuhang Cheng ◽

Julie Gardener

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Magnetic Nanoparticles ◽

Self Assembly ◽

Magnetic Nanoparticle ◽

Driving Forces ◽

Transmission Electron ◽

Carbon Coated ◽

Co Nanoparticles

AbstractMethods to form magnetic nanoparticle monolayers using non-aqueous Langmuir layers are reported. Following a discussion of the driving forces in various self-assembly techniques, we describe how aqueous Langmuir layers can be modified for use in conjunction with oxidationsensitive nanoparticles. Monolayers are formed using Fe and–Co nanoparticles, and transferred to carbon-coated transmission electron microscopy grids using the Langmuir-Schaefer method.

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