High sensitivity fluorescent single particle and single molecule
detection apparatus and method
    26.
    发明授权
    High sensitivity fluorescent single particle and single molecule detection apparatus and method 失效
    高灵敏度荧光单粒子和单分子检测仪器及方法

    公开(公告)号:US4979824A

    公开(公告)日:1990-12-25

    申请号:US358782

    申请日:1989-05-26

    Abstract: Apparatus is described for ultrasensitive detection of single fluorescent particles down to the single fluorescent molecule limit in a fluid or on a substrate comprising means for illuminating a predetermined volume of the fluid or area of the substrate whereby to emit light including background light from the fluid and burst of photons from particles residing in the area. The photon burst is detected in real time to generate output representative signal. The signal is received and the burst of energy from the fluorescent particles is distinguished from the background energy to provide an indication of the number, location or concentration of the particles or molecules.

    Abstract translation: 描述了用于在流体或基板上的单个荧光分子极限处的超灵敏检测的装置,其包括用于照射预定体积的基板的流体或区域的装置,从而发射包括来自流体的背景光的光,以及 从位于该地区的颗粒中发射光子。 实时检测光子脉冲以产生输出代表信号。 信号被接收,并且来自荧光颗粒的能量爆发与背景能区别开来,以提供颗粒或分子的数量,位置或浓度的指示。

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