Preparation and characterization of magnetite/dextran nanocomposite used as a precursor of magnetic fluid

Hong, Ruoyu; Li, J.H.; Qu, Jing; Chen, L.L.; Li, H.Z.

doi:10.1016/j.cej.2009.03.034

Cited by 69 publications

(31 citation statements)

References 36 publications

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“…These are the generalized rheological models for viscoplastic flow with a yield stress. Both models describe the relation between the shear stress τ , and the shear rateγ , which has the following general form: [14]. Our preliminary calculations showed that n ≈ 1.0 ± 0.1 for all the samples studied.…”

Section: Rheological Propertiesmentioning

confidence: 99%

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Rheological Study of Dextran-Modified Magnetite Nanoparticle Water Suspension

et al. 2013

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The aim of this work is to investigate the effect of surface modification of superparamagnetic magnetite nanoparticles (sterically stabilized by sodium oleate) by the dextran biocompatible layer on the rheological behavior of water-based magnetic fluids. The flow curves were measured as a function of the magnetic field strength by means of rheometry. The measured viscosity is generally dependent on both the particle concentration and the geometrical factors such as the particle shape and thickness of the adsorbed layers. The rheological properties of the magnetic fluids studied show the effect of the magnetic field strength and the presence of the surfactant second layer (dextran) on their viscosity.

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Section: Rheological Propertiesmentioning

confidence: 99%

“…In order to describe the rheological properties of magnetic fluids, the Bingham and Herschel-Bulkley models are usually used [14]. These are the generalized rheological models for viscoplastic flow with a yield stress.…”

Section: Rheological Propertiesmentioning

confidence: 99%

Rheological Study of Dextran-Modified Magnetite Nanoparticle Water Suspension

et al. 2013

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“…Gouy magnetic balance showed that the saturation magnetization could be as high as 1.44×10 5 A/m. To prepare a biocompatible water-based magnetic fluid, the Fe 3 O 4 nanoparticles were modified by dextran through a two-step method [16]. The Fe 3 O 4 nanoparticles were first surface modified by amino-silane, and then coated by dextran.…”

Section: Surface Modification Of Fe 3 O 4 Nanoparticlesmentioning

confidence: 99%

Synthesis, Surface Modification and Characterisation of Nanoparticles

Wang

Hong

2011

Advances in Nanocomposites - Synthesis, Characterization and Industrial Applications

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“…One common class of compounds are synthetic and natural hydrophilic polymers such as poly(ethylene glycol) (PEG) [16,17], poly(vinyl alcohol) (PVA) [18][19][20], poly(Llysine) (PLL) [21], poly(acrylic acid) (PAA) [22], dextran [23][24][25][26][27], alginate [28][29][30], chitosan [31][32][33], starch [34][35][36], and gum Arabic [37][38][39] to name a few. These materials are effective at creating a neutral and hydrophilic surface that can resist protein adsorption, however they also come with the drawback of increasing a particle's hydrodynamic size.…”

Section: Coating Agentsmentioning

confidence: 99%

Nanotechnology and Diagnostic Imaging: New Advances in Contrast Agent Technology

Rosen¹,

Yoffe²,

Meerasa³

2011

J Nanomedic Nanotechnol

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Medical imaging technologies allow for the rapid diagnosis and evaluation of a wide range of pathologies. In order to increase their sensitivity and utility, many imaging technologies such as CT and MRI rely on intravenously administered contrast agents. While the current generation of contrast agents has enabled rapid diagnosis, they still suffer from many undesirable drawbacks including a lack of tissue specificity and systemic toxicity issues. Through advances made in nanotechnology and materials science, researchers are now creating a new generation of contrast agents that overcome many of these challenges, and are capable of providing more sensitive and specific information. In this review, we summarize the main classes of nanotechnology-based contrast agents for each of the major imaging technologies, and highlight progress in their development as well as the challenges to be addressed. We also review the relevant biological interactions that determine the in vivo fate of these contrast agents, and describe major themes in medical nanotechnology including stealth and targeting.

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Preparation and characterization of magnetite/dextran nanocomposite used as a precursor of magnetic fluid

Cited by 69 publications

References 36 publications

Rheological Study of Dextran-Modified Magnetite Nanoparticle Water Suspension

Rheological Study of Dextran-Modified Magnetite Nanoparticle Water Suspension

Synthesis, Surface Modification and Characterisation of Nanoparticles

Nanotechnology and Diagnostic Imaging: New Advances in Contrast Agent Technology

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