Si/Si3N4 system nanosized particles, biosubstance labeling agent employing the nanosized particles, and method of manufacturing the nanosized particles

摘要

An objective is to provide Si/Si₃N₄ system nanosized particles each exhibiting reduced environmental load together with minimized bio toxicity, excellent chemical stability, enhanced relative light emission intensity, and less degradation of emission intensity during continuous exposure to light; a biosubstance labeling agent capable of keeping on labeling a biosubstance exhibiting luminance enhanced for a long duration with the Si/Si₃N₄ system nanosized semiconductor particle of the present invention; and also a method of manufacturing the Si/Si₃N₄ system nanosized semiconductor particle of the present invention.