Systems and methods are provided for remotely identifying and classifying materials based on their respective complex permittivity features. Materials of interest to be identified in later inspections are cataloged according to their respective complex permittivity features by applying electromagnetic fields to them and determining their complex permittivity features. That library of features is used to compare field measurements taken during an inspection to determine the presence of a material of interest and to identify it.

Systems and methods are provided for remotely identifying and classifying materials based on their respective complex permittivity features. Materials of interest to be identified in later inspections are cataloged according to their respective complex permittivity features by applying electromagnetic fields to them and determining their complex permittivity features. That library of features is used to compare field measurements taken during an inspection to determine the presence of a material of interest and to identify it.

Volume susceptibilities (s) of dispersoid particles (s) dispersed in a dispersion medium (m) are first obtained by magnetophoresis. Affinity of the dispersoid particles (s) for the dispersion medium (m) is then analyzed using the volume susceptibilities (s) of the respective dispersoid particles (s) and a volume susceptibility (m) of the dispersion medium (m).

Volume susceptibilities (s) of dispersoid particles (s) dispersed in a dispersion medium (m) are first obtained by magnetophoresis. Affinity of the dispersoid particles (s) for the dispersion medium (m) is then analyzed using the volume susceptibilities (s) of the respective dispersoid particles (s) and a volume susceptibility (m) of the dispersion medium (m).

The present invention provides a method for in vitro detection and/or quantification of an analyte in aqueous or biological fluids based on monitoring the variation of the dynamical magnetisation signal of functionalized magnetic nanoparticles after their specific interaction with an analyte. The invention also provides a method for measuring the efficacy of a treatment of a disease in a subject, a method of diagnosis of a disease in a subject, as well as an apparatus for carrying out the three methods.

Systems and methods for quantitative susceptibility mapping (QSM) using magnetic resonance imaging (MRf) and a localized processing technique are described. A field-shift map is processed based on localized regions of local field perturbations. These localized field-shift regions are processed using established QSM algorithms, or using direct dipole inversion techniques, to compute regional susceptibility distributions from the localized field shift information. When the localized regions correspond to subvolumes of the field-shift map, local susceptibility maps can be generated and combined to form a composite quantitative susceptibility map. By computing regional susceptibility distributions based on localized field-shift information, residual streaking artifacts in the susceptibility map are constrained to the individual volumes from which they originate, thereby eliminating their propagation through the image.

Systems and methods for quantitative susceptibility mapping (QSM) using magnetic resonance imaging (MRf) and a localized processing technique are described. A field-shift map is processed based on localized regions of local field perturbations. These localized field-shift regions are processed using established QSM algorithms, or using direct dipole inversion techniques, to compute regional susceptibility distributions from the localized field shift information. When the localized regions correspond to subvolumes of the field-shift map, local susceptibility maps can be generated and combined to form a composite quantitative susceptibility map. By computing regional susceptibility distributions based on localized field-shift information, residual streaking artifacts in the susceptibility map are constrained to the individual volumes from which they originate, thereby eliminating their propagation through the image.

A device for detection of magnetic permeability () or, alternatively, relative magnetic permeability (r) or, alternatively relative magnetic susceptibility (r-) of a sample is described. The device comprises a sample chamber having at least one opening for introduction of a sample or a sample container holding a sample and an electronic circuit. The device also comprises a coil surrounding said sample chamber, and also an electronic circuit adapted to measure the inductance of said coil. The sample chamber, coil and at least one component of the electronic circuit are placed in a temperature controlled zone. Said at least one component in said electronic circuit is/are selected from the group consisting of capacitors, sensors, precision voltage references, precision regulators, low pass and or high pass filters.

A device for detection of magnetic permeability () or, alternatively, relative magnetic permeability (r) or, alternatively relative magnetic susceptibility (r-) of a sample is described. The device comprises a sample chamber having at least one opening for introduction of a sample or a sample container holding a sample and an electronic circuit. The device also comprises a coil surrounding said sample chamber, and also an electronic circuit adapted to measure the inductance of said coil. The sample chamber, coil and at least one component of the electronic circuit are placed in a temperature controlled zone. Said at least one component in said electronic circuit is/are selected from the group consisting of capacitors, sensors, precision voltage references, precision regulators, low pass and or high pass filters.

A magnetic field generation device (100) includes a first magnet (1), a second magnet (2), and a position adjustment mechanism (5). The second magnet (2), together with the first magnet (1), generates a magnetic field. The position adjustment mechanism (5) adjusts a position of the first magnet (1). The magnetic field generation device (100) controls the value of the product of a magnetic flux density and a magnetic flux density gradient in the magnetic field through the adjustment of the position of the first magnet (1) by the position adjustment mechanism (5).