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    • 1. 发明授权
    • Optical structures for metal-enhanced sensing
    • 用于金属增强感测的光学结构
    • US07095502B2
    • 2006-08-22
    • US10633715
    • 2003-08-05
    • Joseph LakowiczZygmunt GryczynskiChris Geddes
    • Joseph LakowiczZygmunt GryczynskiChris Geddes
    • G01N21/55G01N1/10
    • G01N21/648
    • The present invention is directed to optical structures and methods detecting the fluorescence of a molecule using metal-enhanced fluorescence. In particular, the invention describes the use of surface plasmon excitation for excitation of fluorophores near the metal surface and the efficient collection of the emission by coupling into the plasmon resonance and directing towards the detector. More particularly, the present invention makes use of the unique directionality of the plasmon induced fluorescence signal. The present invention is directed to optical structures using metal enhanced fluorescence including: an optical fiber having a conductive external coating; a light emitting diode (LED) having a conical shaped depression with curved sides on a front end surface, the curved sides having a conducting coating on the outer surface with respect to the LED.
    • 本发明涉及使用金属增强荧光检测分子的荧光的光学结构和方法。 特别地,本发明描述了使用表面等离激元激发来激发金属表面附近的荧光团,并且通过耦合到等离子体共振并引导到检测器来有效地收集发射。 更具体地,本发明利用等离子体激发的荧光信号的独特方向性。 本发明涉及使用金属增强荧光的光学结构,包括:具有导电外涂层的光纤; 具有在前端表面上具有弯曲侧面的圆锥形凹陷的发光二极管(LED),所述弯曲侧在所述外表面上具有相对于所述LED的导电涂层。
    • 2. 发明授权
    • Optical structures for metal-enhanced sensing
    • 用于金属增强感测的光学结构
    • US07400397B2
    • 2008-07-15
    • US11488001
    • 2006-07-18
    • Joseph LakowiczZygmunt GryczynskiChris Geddes
    • Joseph LakowiczZygmunt GryczynskiChris Geddes
    • G01J3/30
    • G01N21/648
    • The present invention is directed to optical structures and methods detecting the fluorescence of a molecule using metal-enhanced fluorescence. In particular, the invention describes the use of surface plasmon excitation for excitation of fluorophores near the metal surface and the efficient collection of the emission by coupling into the plasmon resonance and directing towards the detector. More particularly, the present invention makes use of the unique directionality of the plasmon induced fluorescence signal. The present invention is directed to optical structures using metal enhanced fluorescence including: an optical fiber having a conductive external coating; a light emitting diode (LED) having a conical shaped depression with curved sides on a front end surface, the curved sides having a conducting coating on the outer surface with respect to the LED.
    • 本发明涉及使用金属增强荧光检测分子的荧光的光学结构和方法。 特别地,本发明描述了使用表面等离激元激发来激发金属表面附近的荧光团,并且通过耦合到等离子体共振并引导到检测器来有效地收集发射。 更具体地,本发明利用等离子体激发的荧光信号的独特方向性。 本发明涉及使用金属增强荧光的光学结构,包括:具有导电外涂层的光纤; 具有在前端表面上具有弯曲侧面的圆锥形凹陷的发光二极管(LED),所述弯曲侧在所述外表面上具有相对于所述LED的导电涂层。
    • 3. 发明申请
    • Apparatus and methods for surface plasmon-coupled directional emission
    • 表面等离子体耦合定向发射的装置和方法
    • US20050053974A1
    • 2005-03-10
    • US10849465
    • 2004-05-20
    • Joseph LakowiczJoanna MalickaIgnacy GryczynskiZygmunt Gryczynski
    • Joseph LakowiczJoanna MalickaIgnacy GryczynskiZygmunt Gryczynski
    • C12Q1/68G01N21/55G01N21/64G01N21/76
    • G01N21/6428G01N21/4788G01N21/6452G01N21/648G01N21/76G01N33/54373G01N2021/6432
    • Methods and apparatus for fluorescence detection which can increase sensitivity by as much as 20 to 1000-fold are described. This method can preferably also decrease the contribution of sample autofluorescence to the detected signal. The method uses coupling of excited fluorophores with the surface plasmon resonance present in thin conductive films, for example silver, gold, aluminum, copper, or the like. The phenomenon of surface plasmon-coupled emission (SPCE) occurs for fluorophores in a volume adjacent to the conductive layer. This interaction is independent of the mode of excitation, that is, does not require evanescent wave or surface-plasmon excitation. However, such modes of excitation can be advantageous. SPCE can occur over a narrow angular distribution, converting normally isotropic emission into easily collected directional emission. In preferred embodiments, up to 50% of the emission from unoriented samples can be collected, usually much more than typical fluorescence collection efficiencies, which can be 1% or less. Examples are presented showing how simple optical configurations can be used in diagnostics, sensing, or biotechnology applications. Surface plasmon-coupled emission is likely to find widespread applications throughout the biosciences.
    • 描述了将灵敏度提高多达20到1000倍的用于荧光检测的方法和装置。 该方法也可以优选地降低样品自发荧光对检测信号的贡献。 该方法使用激发的荧光团与存在于薄导电膜(例如银,金,铝,铜等)中的表面等离子体共振的耦合。 在与导电层相邻的体积中的荧光团发生表面等离激元耦合发射(SPCE)的现象。 这种相互作用与激发模式无关,也就是说,不需要ev逝波或表面等离子体激发。 然而,这种激发模式可能是有利的。 SPCE可以发生在窄角分布上,将正常的各向同性发射转换成易于收集的定向发射。 在优选的实施方案中,可以收集来自无取向样品的高达50%的发射,通常比典型的荧光收集效率高得多,其可以为1%或更少。 现在举例说明如何在诊断,感测或生物技术应用中使用简单的光学配置。 表面等离子体耦合发射很可能在整个生物科学领域得到广泛的应用。