The In-flow Capture of Superparamagnetic Nanoparticles for Targeting of Gene Therapeutics

2008 ◽  
Author(s):  
N. J. Darton ◽  
B. Hallmark ◽  
X. Han ◽  
S. Palit ◽  
M. R. Mackley ◽  
...  
Keyword(s):  
Superparamagnetic Nanoparticles ◽  
Flow Capture

The in-flow capture of superparamagnetic nanoparticles for targeting therapeutics

2008 ◽  
Vol 4 (1) ◽  
pp. 19-29 ◽  
Author(s):  
Nicholas J. Darton ◽  
Bart Hallmark ◽  
Xuan Han ◽  
Sarah Palit ◽  
Nigel K.H. Slater ◽  
...  
Keyword(s):  
Superparamagnetic Nanoparticles ◽  
Flow Capture

Multifunctional Superparamagnetic Nanoparticles: From Synthesis to siRNA Delivery

2017 ◽  
Vol 23 (16) ◽  
Author(s):  
Sanam Arami ◽  
Majid Mahdavi ◽  
Mohammad Reza Rashidi ◽  
Marziyeh Fathi ◽  
Mohammad Saeid Hejazi ◽  
...  
Keyword(s):  
Sirna Delivery ◽  
Superparamagnetic Nanoparticles

scholarly journals Concentration-dependent oscillation of specific loss power in magnetic nanofluid hyperthermia

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ji-wook Kim ◽  
Jie Wang ◽  
Hyungsub Kim ◽  
Seongtae Bae
Keyword(s):  
Magnetic Dipole ◽  
Critical Role ◽  
Dipole Interaction ◽  
Superparamagnetic Nanoparticles ◽  
Physical Reason ◽  
Strong Concentration ◽  
Magnetic Nanofluid ◽  
Specific Loss ◽  
Specific Loss Power ◽  
Magnetic Nanofluid Hyperthermia

AbstractMagnetic dipole coupling between the colloidal superparamagnetic nanoparticles (SPNPs) depending on the concentration has been paid significant attention due to its critical role in characterizing the Specific Loss Power (SLP) in magnetic nanofluid hyperthermia (MNFH). However, despite immense efforts, the physical mechanism of concentration-dependent SLP change behavior is still poorly understood and some contradictory results have been recently reported. Here, we first report that the SLP of SPNP MNFH agent shows strong concentration-dependent oscillation behavior. According to the experimentally and theoretically analyzed results, the energy competition among the magnetic dipole interaction energy, magnetic potential energy, and exchange energy, was revealed as the main physical reason for the oscillation behavior. Empirically demonstrated new finding and physically established model on the concentration-dependent SLP oscillation behavior is expected to provide biomedically crucial information in determining the critical dose of an agent for clinically safe and highly efficient MNFH in cancer clinics.

scholarly journals Influence of size polydispersity on magnetic field tunable structures in magnetic nanofluids containing superparamagnetic nanoparticles.

2021 ◽  
Author(s):  
Dillip Kumar Mohapatra ◽  
Philip James Camp ◽  
John Philip
Keyword(s):  
Magnetic Field ◽  
Particle Size ◽  
Light Scattering ◽  
Optical Microscopy ◽  
Brownian Dynamics ◽  
Phase Contrast ◽  
Superparamagnetic Nanoparticles ◽  
Magnetic Nanofluids ◽  
Dynamics Simulations ◽  
Brownian Dynamics Simulations

We probe the influence of particle size polydispersity on field-induced structures and structural transitions in magnetic fluids (ferrofluids) using phase contrast optical microscopy, light scattering and Brownian dynamics simulations. Three...

Structural, Morphological, Magnetic and Self-Heating Studies of One-Step Polyol Synthesized Manganese Ferrite (MnFe2O4) Nanoparticles

2019 ◽  
Vol 19 (01) ◽  
pp. 1950003
Author(s):  
P. R. Ghutepatil ◽  
S. H. Pawar
Keyword(s):  
Room Temperature ◽  
Synthesis Method ◽  
Average Crystallite Size ◽  
Superparamagnetic Nanoparticles ◽  
Polyol Synthesis ◽  
X Ray Diffraction ◽  
Self Heating ◽  
Transmission Electron ◽  
One Step ◽  
Mnfe2o4 Nanoparticles

In this paper, uniform and superparamagnetic nanoparticles have been prepared using one-step polyol synthesis method. Structural, morphological and magnetic properties of obtained MnFe2O4 nanoparticles have been investigated by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM) and thermogravimetric analysis (TGA) techniques. Structural investigation showed that the average crystallite size of obtained nanoparticles was about 10[Formula: see text]nm. Magnetic study revealed that the nanoparticles were superparamagnetic at room temperature with magnetization 67[Formula: see text]emu/g at room temperature. The self-heating characteristics of synthesized MnFe2O4 nanoparticles were studied by applying external AC magnetic field of 167.6 to 335.2[Formula: see text]Oe at a fixed frequency of 265[Formula: see text]kHz. The SAR values of MnFe2O4 nanoparticles were calculated for 2, 5, 10[Formula: see text]mg[Formula: see text]mL[Formula: see text] concentrations and it is observed that the threshold hyperthermia temperature is achieved for all concentrations.

Magnetically directed soft actuators driven by moisture

2017 ◽  
Vol 5 (17) ◽  
pp. 4129-4133 ◽  
Author(s):  
Fengxian Gao ◽  
Ning Zhang ◽  
Xiaodong Fang ◽  
Mingming Ma
Keyword(s):  
Superparamagnetic Nanoparticles ◽  
Directional Motion ◽  
Polypyrrole Film ◽  
Soft Actuators

Herein we report the fabrication of a moisture-driven actuator capable of performing directional motion, by incorporating superparamagnetic nanoparticles into a water-responsive polypyrrole film.

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