Needle-type GMR sensor to estimate the magnetic properties of diluted ferrofluid for biomedicine application
نویسندگان
چکیده
This paper proposes a needle-type giant magnetoresistance (GMR) sensor for very low magnetic fluid weight density of ferrofluid estimation. The magnetic fluids or ferrofluids due to their biocompatibility are used for various applications in medicine such as cancer treatment, magnetic resonance imagining (MRI), cell separation and also to detect the bacteria. The high sensitivity of GMR sensor gives us to accurately measure the magnetic properties of ferrofluid in a weak magnetic field. The results were obtained by GMR sensor are compared by theoretical results and showing that the GMR sensor has a good ability for biofluid magnetic characterization.
منابع مشابه
Spatial detection of ferromagnetic wires using GMR sensor and based on shape induced anisotropy
The purpose of this paper is to introduce a new technique for row spacing measurement in a wire array using giant magnetoresistive (GMR) sensor. The self-rectifying property of the GMR-based probes leads to accurately detection of the magnetic field fluctuations caused by surface-breaking cracks in conductive materials, shape-induced magnetic anisotropy, etc. The ability to manufacture probes h...
متن کاملCharacterization of a Needle-type Giant Magnetoresistance Sensor for Detection of Escherichia Coli’s Magnetic Marker
In the recent years, the introduction and development of simple and portable sensors has been the focus of researchers in nearly all scientific domains, particularly in the biomedical settings. Giant magnetoresistance (GMR) provides a cutting-edge sensor technology. The GMR-based sensors are capable to affordably and sensitively detect and quantify microand nano-magnetic particles, even in very...
متن کاملMagnetic nanobeads: Synthesis and application in biomedicine
Nanobiotechnology appears to be an emerging science which leads to new developments in the field of medicine. Importance of the magnetic nanomaterials in biomedical science cannot be overlooked. The most commonly used chemical methods to synthesize drugable magnetic nanobeads are co-precipitation, thermal decomposition and microemulsion. However monodispersion, selection of an appropriate coati...
متن کاملCooling Enhancement of a Photovoltaic Panel Through Ferrofluid Stimulation Using a Magnetic-Wind Turbine
Wind energy is used to rotate a magnetic turbine in order to remove heat from the surface of a photovoltaic (PV) panel. A three-bladed turbine, which rotates with wind energy, has rotational motion underneath the studied PV panel in order to move Magnetic Nano-Particles (MNPs). In addition, effects of the magnetic field strength (B=450-830 mT), rotational velocity of the magnetic turbine (ω), a...
متن کاملRheological Study of Nickel Ferrite Ferrofluid
In this work, a stable NiFe2O4 paraffin based ferrofluid was prepared via high energy milling. The rheological properties of ferrofluid were studied. Bingham plastic, HerschelBulkley and Casson models were used to evaluate the shear stress-shear rate dependency. The ferrofluid exhibited a shear thinning behaviour for all studied magnetic field. The magneto-viscous effect and thixotropy of...
متن کامل