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    • 2. 发明申请
    • Composite organic-inorganic nanoparticles and methods for use thereof
    • 复合有机 - 无机纳米颗粒及其使用方法
    • US20050147963A1
    • 2005-07-07
    • US10748336
    • 2003-12-29
    • Xing SuJingwu ZhangLei SunAndrew Berlin
    • Xing SuJingwu ZhangLei SunAndrew Berlin
    • G01N21/65G01N33/543C12Q1/70C12M1/34C12Q1/68
    • G01N33/54346G01N21/6428G01N21/6458G01N21/658G01N2021/6482G01N2021/653G01N2021/655G01N2021/656
    • Composite organic-inorganic nanoparticles (COIN) are provided that produce surface-enhanced Raman signals when excited by a laser. The nanoparticles include metallic colloids and a Raman-active organic compound. The metal required for achieving a suitable SERS signal is inherent in the nanoparticle, and a wide variety of Raman-active organic compounds can be incorporated into the particle. Indeed, a large number of unique Raman signatures can be created by employing nanoparticles containing Raman-active organic compounds of different structures, mixtures, and ratios. Thus, nanoparticles and methods described herein are useful for the simultaneous detection of many analytes in a mixture, resulting in rapid qualitative analysis of a mixture. In addition, since many Raman-active organic compounds can be incorporated into a single nanoparticle, the SERS signal from a single COIN particle is strong relative to SERS signals obtained from Raman-active materials that do not contain the nanoparticles described herein.
    • 提供了复合有机 - 无机纳米粒子(COIN),当激光激发时产生表面增强的拉曼信号。 纳米颗粒包括金属胶体和拉曼活性有机化合物。 实现合适的SERS信号所需的金属在纳米颗粒中是固有的,并且可以将多种拉曼活性有机化合物掺入颗粒中。 实际上,通过使用含有不同结构,混合物和比例的拉曼活性有机化合物的纳米颗粒,可以产生大量独特的拉曼特征。 因此,本文所述的纳米颗粒和方法可用于同时检测混合物中的许多分析物,导致混合物的快速定性分析。 另外,由于许多拉曼活性有机化合物可以并入单个纳米颗粒中,所以来自单个COIN颗粒的SERS信号相对于不含本文所述纳米颗粒的拉曼活性材料获得的SERS信号是强的。