Semiconductor phosphor nanoparticle assembly, producing method thereof and single molecule observation method by use thereof

Abstract

The present invention provide a semiconductor phosphor nanoparticle assembly which exhibits no variation in emission wavelength and emission intensity for every particle and is capable of achieving stable evaluation when performing a single molecule observation by using an assembly of semiconductor phosphor nanoparticles as a fluorescence labeling agent, a production method thereof and a single molecule observation method by use thereof. The production method of the semiconductor phosphor nanoparticle assembly, which is performed by a liquid phase process or a gas phase process, comprises the steps of forming nuclear particles and allowing the nuclear particles to grow or fuse, wherein a concentration by number of the formed nuclear particles is not more than a specific concentration.

Dependencies are inferred from the claim text.