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    • 38. 发明公开
    • 자성 나노입자와 고점성(高粘性) 용액을 이용한 식중독균 검출방법
    • 使用磁性纳米颗粒和高粘度溶液感染食物毒素细菌的方法
    • KR1020140067386A
    • 2014-06-05
    • KR1020120134544
    • 2012-11-26
    • 포항공과대학교 산학협력단대한민국 (식품의약품안전처장)
    • 전상민권동훈주진명박기환한상배이화정김규헌
    • C12Q1/04C12Q1/24G01N33/569
    • G01N33/54333C12Q1/04C12Q1/24G01N33/54326G01N33/54346G01N33/56911G01N33/56916G01N33/587G01N2333/255
    • The present invention relates to a method for detecting food borne pathogens and, more specifically, to a method for rapidly and quantitatively isolating contents of food borne pathogens contaminated in foods. In order to solve the assignment, the method according to the present invention comprises the following steps: adding magnetic nanoparticles capable of combining with bacteria to samples which measure the bacteria, and combining the magnetic nanoparticles with the bacteria; isolating the magnetic nanoparticles; separating the magnetic nanoparticles combined with the bacteria from magnetic nanoparticles not combined with the bacteria by transmitting the magnetic nanoparticles isolated using magnetism through a high viscous liquid; and quantifying the magnetic nanoparticles combined with the bacteria. As in the present invention, the method for isolating the magnetic nanoparticles using magnetism from high viscous liquid clearly isolates the magnetic nanoparticles with which bacteria are not combined from the magnetic nanoparticles with which bacteria are combined while showing band shapes in the high viscous liquid. If centrifugal separator is used, separation capability between nanoparticles is decreased. In addition, the method according to the present invention does not require a separate device such as the centrifugal separator, except magnetic nanoparticles and magnets.
    • 本发明涉及一种用于检测食源性病原体的方法,更具体地,涉及一种用于快速和定量地分离食品中食源性病原体的内容物的方法。 为了解决这一问题,本发明的方法包括以下步骤:将能够与细菌结合的磁性纳米颗粒加入到测量细菌的样品中,并将磁性纳米颗粒与细菌结合; 分离磁性纳米粒子; 通过传输使用磁性分离的磁性纳米颗粒通过高粘度液体将与细菌结合的磁性纳米颗粒与未与细菌组合的磁性纳米颗粒分离; 并量化与细菌结合的磁性纳米颗粒。 与本发明一样,使用高粘性液体的磁性分离磁性纳米粒子的方法清楚地将与细菌组合的磁性纳米粒子与细菌结合的磁性纳米颗粒分离,同时在高粘度液体中显示出带状。 如果使用离心分离器,则纳米颗粒之间的分离能力降低。 此外,根据本发明的方法除了磁性纳米颗粒和磁体之外不需要诸如离心分离器的单独的装置。