PARTICLE ANALYSIS METHOD FOR IDENTIFYING INFECTIONS

    公开(公告)号:US20180356328A1

    公开(公告)日:2018-12-13

    申请号:US16003262

    申请日:2018-06-08

    Inventor: Konobu KIMURA

    Abstract: Disclosed is a particle analysis method for identifying infections, comprising: step A of irradiating light on a measurement sample prepared by mixing a test blood specimen containing particles, collected from a subject, a fluorescent dye that stains a nucleic acid, and a hemolytic agent, thereby acquiring scattered light and fluorescence from each particle contained in the measurement sample, step B of specifying particles that are substantially not contained in blood of control subjects not suffering from infection and are determined to be neutrophils contained in blood of patients with infection, based on the scattered light and the fluorescence, and acquiring particle number information on the specified particles, and step C of determining whether the test blood specimen is a specimen collected from patients with bacterial infection or a specimen collected from patients with viral infection, based on the particle number information.

    Cationic Tags for Attomole Level Detection of Analytes by Mass Spectrometry

    公开(公告)号:US20180321226A1

    公开(公告)日:2018-11-08

    申请号:US16021941

    申请日:2018-06-28

    Abstract: The invention provides methods of detecting an analyte by multi-stage mass spectrometry with improved S/N ratio. An analyte is labeled with a positively-charged mass tag to form a precursor ion that leads by anchimeric assistance to a greatly enhanced, analyte-characteristic first product ion that can, in turn, lead to a greatly enhanced, analyte-characteristic second product ion in a mass spectrometer. Either a three stage mass spectrometer (true MS3) or a two-stage mass spectrometer (MS2) operated in a pseudo MS3 mode can be used. The precursor ion is split via an anchimeric-assisted reaction to form a first product ion, which in turn can be fragmented to form the second product ion. The methods offer extreme ultrasensitivity, at the low amol level. The invention also provides anchimeric mass tags for use in the methods. A wide variety of previously undetectable analytes of biological or environmental origin can be detected and quantified.

Patent Agency Ranking