Patents by Inventor Dmitry Plaksin

Dmitry Plaksin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for selectively detecting ferromagnetic or superparamagnetic particles
    Patent number: 8071027
    Abstract: The invention relates to a method for selectively detecting and/or quantifying superparamagnetic and/or ferromagnetic particles on analytes. The method is characterized in that a frequency component of magnetic fields (15, 18), which is generated due to the non-linearity of the magnetization characteristic curve of the particles, is measured at a mixing frequency. A device for selectively detecting and/or quantifying superparamagnetic and/or ferromagnetic particles on analytes comprises: a container (12) that contains particles, which are to be detected and/or quantified, on analytes; at least one oscillator (13, 16; 25) for generating frequencies of alternating magnetic fields (15, 18); at least one field generator (14, 17) for subjecting the analytes to alternating magnetic fields (15, 18); a magnetic field sensor (20) for measuring a response magnetic field (19) of the particles, and; at least one phase-sensitive detector (21, 23).
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: December 6, 2011
    Assignee: Forschungszentrum Juelich GmbH
    Inventors: Peter Miethe, Hans-Joachim Krause, Yi Zhang, Norbert Wolters, Dmitry Plaksin
  • Method and device for selectively detecting ferromagnetic or superparamagnetic particles.
    Publication number: 20070155024
    Abstract: The invention relates to a method for selectively detecting and/or quantifying superparamagnetic and/or ferromagnetic particles on analytes. The method is characterized in that a frequency component of magnetic fields (15, 18), which is generated due to the non-linearity of the magnetization characteristic curve of the particles, is measured at a mixing frequency. A device for selectively detecting and/or quantifying superparamagnetic and/or ferromagnetic particles on analytes comprises: a container (12) that contains particles, which are to be detected and/or quantified, on analytes; at least one oscillator (13, 16; 25) for generating frequencies of alternating magnetic fields (15, 18); at least one field generator (14, 17) for subjecting the analytes to alternating magnetic fields (15, 18); a magnetic field sensor (20) for measuring a response magnetic field (19) of the particles, and; at least one phase-sensitive detector (21, 23).
    Type: Application
    Filed: January 30, 2004
    Publication date: July 5, 2007
    Inventors: Peter Miethe, Hans-Joachim Krause, Yi Zhang, Norbert Wolters, Dmitry Plaksin