Modified and functionalized metallic nanoclusters capable of providing an enhanced Raman signal from an organic Raman-active molecule incorporated therein are provided. For example, modifications include coatings and layers, such as adsorption layers, metal coatings, silica coatings, and organic layers. The nanoclusters are generally referred to as COINs (composite organic inorganic nanoparticles) and are capable of acting as sensitive reporters for analyte detection. A metal that enhances the Raman signal from the organic Raman-active compound is inherent in the nanocluster. A variety of organic Raman-active compounds and mixtures of compounds can be incorporated into the nanocluster.
本研究提供了经过修饰和功能化的
金属纳米团簇,这些团簇能够从其中结合的有机拉曼活性分子中提供增强的拉曼信号。例如,修饰包括涂层和层,如吸附层、
金属涂层、
二氧化硅涂层和有机层。纳米团簇通常被称为 COINs(复合有机无机纳米颗粒),能够作为灵敏的报告器用于分析物检测。纳米团簇中固有的
金属可增强有机拉曼活性化合物的拉曼信号。各种有机拉曼活性化合物和化合物混合物都可以加入纳米团簇中。