Magnetic immunoassay based on frequency mixing magnetic detection and magnetic particles of different magnetic properties

2014 ◽  
Vol 6 (19) ◽  
pp. 8055-8058 ◽  
Author(s):  
H. B. Hong ◽  
H.-J. Krause ◽  
I. H. Nam ◽  
C. J. Choi ◽  
S. W. Shin
Keyword(s):  
Magnetic Properties ◽  
Magnetic Particles ◽  
Different Types ◽  
Magnetic Detection ◽  
Analytical System ◽  
Frequency Mixing

A novel analytical system is presented that employs two different types of magnetic particles (MPs) with frequency mixing magnetic detection (FMMD).

scholarly journals Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

10.3791/53869 ◽  
2016 ◽  
Author(s):  
Hyobong Hong ◽  
Eul-Gyoon Lim ◽  
Jae-chan Jeong ◽  
Jiho Chang ◽  
Sung-Woong Shin ◽  
...  
Keyword(s):  
Magnetic Particles ◽  
Magnetic Detection ◽  
Frequency Mixing

Structural diversity and magnetic properties of six ferrocenyl monocarboxylate Mn(ii), Ni(ii) and Co(ii) complexes with 1D aqua, carboxyl or dinuclear hydroxyl bridges

CrystEngComm ◽  
2021 ◽  
Author(s):  
Misbha Rafiq Khan ◽  
Xiaoge Niu ◽  
Tianling Chen ◽  
Yan Liu ◽  
Zhongyi Liu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Coupling ◽  
Structural Diversity ◽  
Different Types ◽  
Structure Diversity

Six ferrocenyl monocarboxylate Mn(ii), Ni(ii) and Co(ii) complexes with different types of magnetic coupling bridges were synthesized successfully. 1–6 display intriguing structure diversity and magnetic properties.

Adsorption of Iron (II) Ion by Using Magnetite-Bentonite-Based Monolith from Water

2021 ◽  
Vol 892 ◽  
pp. 10-16
Author(s):  
Ismi Nurul ◽  
Syamsuddin Yanna ◽  
Adisalamun ◽  
Aulia Sugianto Veneza ◽  
Darmadi
Keyword(s):  
Magnetic Properties ◽  
Magnetic Particles ◽  
Solution Concentration ◽  
Iron Solution ◽  
Monolayer Adsorption ◽  
Coprecipitation Process ◽  
Non Linear ◽  
Magnetic Loading ◽  
Langmuir Constants

In this study, iron removal was carried out by the adsorption process as a well-known method of removing heavy metal. Natural bentonite with magnetic properties in a monolithic form or Magnetite-Bentonite-based Monolith (MBM) adsorbent was used as an adsorbent to remove Iron (II) ion from the aqueous solution. The magnetic properties of adsorbents are obtained by adding magnetite (Fe3O4), which is synthesized by the coprecipitation process. The characterization of magnetic properties was performed using the Vibrating Sample Magnetometer (VSM). VSM results showed that the magnetic particles were ferromagnetic. Adsorption efficiency, isotherm model, and adsorption kinetics were investigated in a batch system with iron solution concentration varied from 2 to 10 mg/L and magnetite loading at 2% and 5% w/w. The highest removal efficiency obtained reached 89% with a 5% magnetite loading. The best fit to the data was obtained with the Langmuir isotherm (non-linear) with maximum monolayer adsorption capacity (Qo) at 5% magnetic loading MBM adsorbent is 0.203 mg/g with Langmuir constants KL and aL are 2.055 L/g and 10.122 L/mg respectively. The pseudo-first-order (non-linear) kinetic model provides the best correlation of the experimental data with the rate of adsorption (k1) with magnetite loading 2% and 5%, respectively are 0.024 min-1 and 0.022 min-1.

Ultrafine magnetic particles dispersed in silica: Characterization of cobalt iron citrate precursor and magnetic properties

2008 ◽  
Vol 43 (5) ◽  
pp. 1112-1118 ◽  
Author(s):  
Sagrario M. Montemayor ◽  
L.A. García-Cerda ◽  
J.R. Torres-Lubián ◽  
O.S. Rodríguez-Fernández
Keyword(s):  
Magnetic Properties ◽  
Magnetic Particles ◽  
Iron Citrate ◽  
Cobalt Iron ◽  
Citrate Precursor

Study of the Performance of Practical Magneto-Rheological Elastomers

2012 ◽  
Vol 430-432 ◽  
pp. 1979-1983
Author(s):  
Wei Bang Feng ◽  
Xue Yang ◽  
Zhi Qiang Lv
Keyword(s):  
Magnetic Field ◽  
Mechanical Properties ◽  
Mechanical Property ◽  
Magnetic Properties ◽  
External Magnetic Field ◽  
Magnetic Particles ◽  
Poor Performance ◽  
Electrical And Magnetic Properties ◽  
Intelligent Material ◽  
Magneto Rheological

Magneto-rheological elastomer( MR elastomer) is an emerging intelligent material made up of macromolecule polymer and magnetic particles. While a promising wide application it has in the fields of warships vibration controlling for its controllable mechanical, electrical and magnetic properties by external magnetic field, design and application of devices based on it are facing great limitations imposed by its poor performance in mechanical properties and magneto effect. Aiming at developing a practical MR elastomer, a new confecting method was proposed in this paper. Then, following this new method and using a specificly designed solidifying matrix, an amido- polyester MR elastomer was developed with its mechanical property systemically explored.

Dynamic calculations of the core/shell structured Ising-type endohedral fullerenes: The effect of core and core/shell interaction

2017 ◽  
Vol 31 (33) ◽  
pp. 1750307 ◽  
Author(s):  
Ersin Kantar
Keyword(s):  
Magnetic Properties ◽  
Magnetic Particles ◽  
Stochastic Dynamics ◽  
Mean Field Theory ◽  
Mean Field ◽  
Core Shell ◽  
Core Particle ◽  
Factors Affecting ◽  
The Core ◽  
First Order Phase

In this study, we examine by comparing the dynamic magnetic and hysteretic properties of Ising-type endohedral fullerene (EF) with various dopant magnetic particles confined within a spherical cage. The model of EF X@C[Formula: see text] with X = spin-1/2, spin-1 and spin-3/2 is proposed to study the effect of the nature of core particle on the magnetic properties. The results were obtained by mean-field theory as well as Glauber-type stochastic dynamics, and focused on the response of thermal and hysteretic behaviors of systems. The system exhibits second- and first-order phase transitions. In three different core cases, the system also exhibits type-II superconductivity behavior with a dynamic hysteresis curves of the core. All results display magnetic properties of the EF which strongly depend on the nature of core particle. Moreover, core particle and core/shell (C–S) interaction are proposed as the basic factors affecting the magnetic properties of EF system.

scholarly journals Influence of the Milling Time on Mechanical and Magnetic Properties of Cu90Co5Ni5 Alloy Obtained by Mechanical Alloying

2009 ◽  
Vol 423 ◽  
pp. 119-124 ◽  
Author(s):  
Marta López ◽  
M. Elena Gómez ◽  
David Reyes ◽  
K. Ramam ◽  
Ramalinga V. Mangalaraja ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Mechanical Alloying ◽  
Magnetic Particles ◽  
Milling Time ◽  
Copper Matrix ◽  
Milling Process ◽  
Sintering Behavior ◽  
Powder Samples ◽  
Xrd Patterns ◽  
Sintered Alloys

The structure, mechanical and magnetic properties of Cu90Co5Ni5 alloys produced by mechanical alloying and subsequent cold consolidation and sintering behavior, have been investigated. A system of small Co and Ni magnetic particles embedded in the non-magnetic copper matrix were prepared through a mechanical milling process by using a planetary ball mill under argon atmosphere for 20 to 60 h. The morphology and particles size, phase formation and chemical composition of the alloyed powder samples for each milling time were characterized by scanning electron microscope and powder X-ray diffraction techniques, respectively. After milling for 60 h, a supersaturated solid solution with coercive field Hc with maximum value of 235Oe was obtained. The continuous decreasing trend of saturation magnetization (Ms) with increasing of milling time can be explained by the reduction of copper oxide by (CoNi) oxide formation, confirmed by powder XRD patterns. The XRD analyses of the as-milled samples revealed that the Bragg peaks of FCC-Co changed partially to HCP-Co on increasing the milling time. Cu90Co5Ni5 powders cold consolidated and sintered at 650°C for 1h segregated mainly into two-phases of mixed (fcc,hc)-Co and fcc-CuNi. After sintering, the mechanical properties for 60h milling reached its optimum, 26HV in hardness corresponding to 250MPa as compressive strength. TEM microanalysis of sintered alloys revealed Co cluster of 2 to 5 nm in size separated each one by 10 to 20 nm in size. The variation of magnetic properties and its dependence on structural-precipitation change with milling time are discussed.

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