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    • 20. 发明授权
    • Fiber optic-based regenerable biosensor
    • 基于光纤的可再生生物传感器
    • US5176881A
    • 1993-01-05
    • US765579
    • 1991-09-25
    • Michael J. SepaniakTuan Vo-Dinh
    • Michael J. SepaniakTuan Vo-Dinh
    • A61B5/00G01N21/77G01N21/85G01N33/543
    • A61B5/0084G01N21/7703G01N21/8507G01N33/54373A61B5/0071G01N2021/6434G01N2021/7733
    • A fiber optic-based regenerable biosensor. The biosensor is particularly suitable for use in microscale work in situ. In one embodiment, the biosensor comprises a reaction chamber disposed adjacent the distal end of a waveguide and adapted to receive therein a quantity of a sample containing an analyte. Leading into the chamber is a plurality of capillary conduits suitable for introducing into the chamber antibodies or other reagents suitable for selective interaction with a predetermined analyte. Following such interaction, the contents of the chamber may be subjected to an incident energy signal for developing fluorescence within the chamber that is detectable via the optical fiber and which is representative of the presence, i.e. concentration, of the selected analyte. Regeneration of the biosensor is accomplished by replacement of the reagents and/or the analyte, or a combination of these, at least in part via one or more of the capillary conduits. The capillary conduits extend from their respective terminal ends that are in fluid communication with the chamber, away from the chamber to respective location(s) remote from the chamber thereby permitting in situ location of the chamber and remote manipulation and/or analysis of the activity with the chamber.
    • 一种基于光纤的可再生生物传感器。 生物传感器特别适用于原位微量工作。 在一个实施例中,生物传感器包括邻近波导的远端设置的反应室,并适于在其中接收一定量的含有分析物的样品。 进入腔室的是多个毛细管道,其适于将腔室内的抗体或适于与预定分析物的选择性相互作用的其它试剂引入。 在这种相互作用之后,腔室的内容物可以经受入射能量信号,用于在室内发展可通过光纤检测的荧光,并且其代表所选分析物的存在即浓度。 生物传感器的再生是通过至少部分地经由一个或多个毛细管道替换试剂和/或分析物或它们的组合而实现的。 毛细导管从其相应的终端延伸,其与腔室流体连通,远离腔室到远离腔室的相应位置,从而允许腔室的原位位置,并且对活动进行远程操作和/或分析 与房间。