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    • 1. 发明申请
    • DEVICE FOR HIGHLY SENSITIVE MAGNETIC DETECTION OF ANALYTES
    • 设备分析物的最大灵敏度的磁检测
    • WO1997040377A1
    • 1997-10-30
    • PCT/DE1997000611
    • 1997-03-26
    • INSTITUT FÜR DIAGNOSTIKFORSCHUNG GMBH AN DER FREIEN UNIVERSITÄT BERLINKOCH, HansMATZ, HartmutKÖTITZ, RomanDRUNG, DietmarTRAHMS, LutzWEITSCHIES, WernerSEMMLER, Wolfhard
    • INSTITUT FÜR DIAGNOSTIKFORSCHUNG GMBH AN DER FREIEN UNIVERSITÄT BERLIN
    • G01N33/483
    • G01N33/54333G01N35/0098Y10S505/846
    • This invention concerns a device for qualitative and/or quantitative detection of analytes, particularly in an also biological test sample, by means of ligand-receptor bonds with a magnetizing device for producing field at the site of the test sample and with a detection device for measuring magnetic properties of the test sample. This device is characterized by the fact that the magnetizing device (11', 11'') is arranged spacially with respect to the detection device (71, 8, 9, 10; 16; 20), such that the magnetic field produced by the magnetizing device (11', 11'') at the site which the test sample occupies during measurement is weakened by at least a factor of 10, preferably by a factor of 1000 or more, or by the fact that a switching device is provided which can turn off the magnetic field of the magnetizing device (11; 21) at the site of the test sample (12) for a pre-set period, particularly during the measurement phase of the detection device (71, 8, 9, 10; 16; 20). This permits new kinds of processes for magneto-relaxometric detection of analytes to be carried out or for detection of analytes by means of remanence measurement, routinely and economically in vitro or in vivo.
    • 一种用于一个特定的生物样品中定性和/或定量检测的分析物的通过的受体 - 配体键的方式与磁化设备装置,用于在测量样本的位置产生磁场,并用一个检测装置,用于测量所述测量样品的磁特性,其特征在于 该磁化装置(11'; 11“)在空间上以这样的方式向所述检测装置(71,8,9,10; 16; 20)被布置为使得磁化装置(11”; 11')在磁化位置产生 在该测量过程中测量样品占用磁场,至少10倍,并且优选是由1000或更多倍衰减,或开关装置被提供,其用于在预定的时间周期,特别是在检测装置的测量阶段(71, 8,9,10; 16),所述磁化装置(11的磁场; 21) 可以在测量样品(12)的位置开关。 因此,对于分析物的检测magnetorelaxometric或用于通过剩磁的装置的检测分析物的新方法可以在体外或体内常规且廉价地进行。