Associative Polymer-grafted Magnetic Nanoparticles for Stabilization and Recovery of Pickering Emulsions

2018 ◽  
Vol 39 (6) ◽  
pp. 806-811 ◽  
Author(s):  
Sang Koo Choi ◽  
Han Am Son ◽  
Daehwan Park ◽  
Jin Woong Kim
Keyword(s):  
Magnetic Nanoparticles ◽  
Pickering Emulsions ◽  
Associative Polymer

scholarly journals Ultrasonic Studies of Emulsion Stability in the Presence of Magnetic Nanoparticles

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
A. Józefczak ◽  
R. Wlazło
Keyword(s):  
Magnetic Field ◽  
Magnetic Nanoparticles ◽  
Acoustic Waves ◽  
Magnetic Particles ◽  
Emulsion Stability ◽  
High Energy ◽  
Pickering Emulsions ◽  
Ultrasound Waves ◽  
Acoustic Study ◽  
Magnetite Particles

Pickering emulsions are made of solid particle-stabilized droplets suspended in an immiscible continuous liquid phase. A magnetic emulsion can be obtained using magnetic particles. Solid magnetic nanoparticles are adsorbed strongly at the oil-water interface and are able to stabilize emulsions of oil and water. In this work emulsions stabilized by magnetite nanoparticles were obtained using high-energy ultrasound waves and a cavitation mechanism and, next, their stability in time was tested by means of acoustic waves with a low energy, without affecting the structure. An acoustic study showed high stability in time of magnetic emulsions stabilized by magnetite particles. The study also showed a strong influence of an external magnetic field, which can lead to changes of the emulsion properties. It is possible to control Pickering emulsion stability with the help of an external stimulus—a magnetic field.

Particulate Coacervation of Associative Polymer Brushes-Grafted Nanoparticles To Produce Structurally Stable Pickering Emulsions

Langmuir ◽  
2016 ◽  
Vol 32 (50) ◽  
pp. 13403-13408 ◽  
Author(s):  
Taeseung Yang ◽  
Sang Koo Choi ◽  
Daehwan Park ◽  
Yea Ram Lee ◽  
Chan Bok Chung ◽  
...  
Keyword(s):  
Polymer Brushes ◽  
Pickering Emulsions ◽  
Associative Polymer ◽  
Grafted Nanoparticles ◽  
Structurally Stable

Switchable Pickering emulsions stabilized by polystyrene-modified magnetic nanoparticles

2020 ◽  
Vol 606 ◽  
pp. 125462 ◽  
Author(s):  
Ana Gálvez-Vergara ◽  
Beatriz Fresco-Cala ◽  
Soledad Cárdenas
Keyword(s):  
Magnetic Nanoparticles ◽  
Pickering Emulsions ◽  
Modified Magnetic Nanoparticles

Thermal Conductivity of Nanofluid with Magnetic Nanoparticles

PIERS Online ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 231-234 ◽  
Author(s):  
Tsung-Han Tsai ◽  
Long-Sheng Kuo ◽  
Ping-Hei Chen ◽  
Chin-Ting Yang
Keyword(s):  
Thermal Conductivity ◽  
Magnetic Nanoparticles

Ferromagnetic Resonance Biosensor for Homogeneous and Volumetric Detection of DNA

2017 ◽  
Author(s):  
Bo Tian ◽  
Peter Svedlindh ◽  
Mattias Strömberg ◽  
Erik Wetterskog
Keyword(s):  
Magnetic Nanoparticles ◽  
Ferromagnetic Resonance ◽  
Limit Of Detection ◽  
Point Of Care ◽  
Rolling Circle Amplification ◽  
Resonance Field ◽  
Isothermal Amplification ◽  
Detection Sensitivity ◽  
Serum Samples ◽  
Rolling Circle

In this work, we demonstrate for the first time, a ferromagnetic resonance (FMR) based homogeneous and volumetric biosensor for magnetic label detection. Two different isothermal amplification methods, <i>i.e.</i>, rolling circle amplification (RCA) and loop-mediated isothermal amplification (LAMP) are adopted and combined with a standard electron paramagnetic resonance (EPR) spectrometer for FMR biosensing. For RCA-based FMR biosensor, binding of RCA products of a synthetic Vibrio cholerae target DNA sequence gives rise to the formation of aggregates of magnetic nanoparticles. Immobilization of nanoparticles within the aggregates leads to a decrease of the net anisotropy of the system and a concomitant increase of the resonance field. A limit of detection of 1 pM is obtained with an average coefficient of variation of 0.16%, which is superior to the performance of other reported RCA-based magnetic biosensors. For LAMP-based sensing, a synthetic Zika virus target oligonucleotide is amplified and detected in 20% serum samples. Immobilization of magnetic nanoparticles is induced by their co-precipitation with Mg<sub>2</sub>P<sub>2</sub>O<sub>7</sub> (a by-product of LAMP) and provides a detection sensitivity of 100 aM. The fast measurement, high sensitivity and miniaturization potential of the proposed FMR biosensing technology makes it a promising candidate for designing future point-of-care devices.<br>

Magnetic Nanoparticles for Extracting DNA from Blood Cells

2020 ◽  
Vol 84 (11) ◽  
pp. 1362-1365
Author(s):  
A. V. Komina ◽  
R. N. Yaroslavtsev ◽  
Y. V. Gerasimova ◽  
S. V. Stolyar ◽  
I. A. Olkhovsky ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Blood Cells

MR Molecular Imaging Based on Magnetic Nanoparticles

2018 ◽  
pp. 17-28
Author(s):  
Hwunjae Lee ◽  
◽  
SangBock Lee ◽  
Geahwan Jin ◽  
Sergey NETESOV ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Molecular Imaging

MR Molecular Imaging Based on Magnetic Nanoparticles

2018 ◽  
pp. 17-28
Author(s):  
Hwunjae Lee ◽  
◽  
SangBock Lee ◽  
Geahwan Jin ◽  
Sergey NETESOV ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Molecular Imaging
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