Abstract: A significant enhancement of detection capabilities of the room temperature MPQ is seen using optical lithography-defined, ferromagnetic iron-nickel alloy microdisks. Irreversible transitions between strongly non-collinear (vortex) and a collinear single domain states, driven by an ac magnetic field, translate into a nonlinear magnetic response that enables ultrasensitive detection of material at relatively small magnetic fields.

Abstract: A significant enhancement of detection capabilities of the room temperature MPQ is seen using optical lithography-defined, ferromagnetic iron-nickel alloy microdisks. Irreversible transitions between strongly non-collinear (vortex) and a collinear single domain states, driven by an ac magnetic field, translate into a nonlinear magnetic response that enables ultrasensitive detection of material at relatively small magnetic fields.

Abstract: A significant enhancement of detection capabilities of the room temperature MPQ is seen using optical lithography-defined, ferromagnetic iron-nickel alloy microdisks. Irreversible transitions between strongly non-collinear (vortex) and a collinear single domain states, driven by an ac magnetic field, translate into a nonlinear magnetic response that enables ultrasensitive detection of material at relatively small magnetic fields.

Abstract: A significant enhancement of detection capabilities of the room temperature MPQ is seen using optical lithography-defined, ferromagnetic iron-nickel alloy microdisks. Irreversible transitions between strongly non-collinear (vortex) and a collinear single domain states, driven by an ac magnetic field, translate into a nonlinear magnetic response that enables ultrasensitive detection of material at relatively small magnetic fields.

Abstract: A method and device for chemical or biological analysis by a sensor provided with a monolithic chamber in the form of a multi-microtubular sheaf and a lateral integration measuring transducer. The method improves the usual method for a sensor evaluation of an analyte concentration in a fluid sample by multi-canalising in parallel the fluid sample fraction through channels of a monolithic reaction chamber, positioning a transducer system fully outside the surface of the shell of the reaction chamber and strictly in front of the lateral face thereof, carrying out an integral measurement of signals generated by the analyte combination and a receiver, which is also arranged in the reaction chamber, by a lateral transducer system coevally in all channels of the reaction chamber such that the presence of the analyte in all channels of the reaction chamber is simultaneously and globally quantified.

Abstract: The invention relates to non-contact methods of examining physical and chemical parameters of various media, particularly, gases or liquids. It can be used to determine properties and compositions of media including those containing various chemical or biological components with applications in scientific research, technology and environmental monitoring.

Abstract: The invention relates to non-contact methods of examining parameters of external actions on various media or objects. Such an action could be of various types, e.g., physical (pressure, heating, electric or magnetic field etc.), chemical (action of various chemical substances and associated reactions: binding, replacement, catalysis etc.), biological (action of microorganisms or viruses on a nutrient medium). The invention can be used in scientific research, technology and environmental monitoring.