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Granular nanoparticles having bright fluorescence and giant raman enhancements
Granular nanoparticles having bright fluorescence and giant raman enhancements
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机译：具有明亮荧光和巨大拉曼增强作用的颗粒纳米颗粒
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摘要
The present invention provides nanoparticles having bright fluorescence, where the total number of photons emitted from a single nanoparticle upon excitation with an excitation wavelength of the nanoparticle is at least 107, and giant Raman enhancements, where Raman signal for a molecule near a single nanoparticle increases at least 107 times. The nanoparticles of the invention comprise a plurality of crystallites that are each about 0.6 nm to about 10 nm in size. The present invention also provides methods for making the nanoparticles, which include mixing a matrix material with a reactant capable of being thermally reduced to form the nanoparticle; forming a mixed solid phase; and thermally reducing the mixed solid phase to form the nanoparticle.
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