| 초록 |
The quantum dots (QDs) have great potential in bio imaging fields because they have unique optical and electronic properties based on quantum confinement effects. In this study, we synthesized particles coated with silica with multiple QDs introduced onto the surface of a silica template, and these particles (Si@D-QD@Si) have much brighter fluorescence than single quantum dots. Si@D-QD@Si NPs exhibited a narrow size distribution and a high signal reproducibility. Red, green, and blue Si@D-QD@Si NPs were successfully synthesized and optimized. The Si@D-QD@Si NPs contained 2.4 times more QDs than previously reported silica-coated QD-embedded silica NPs (Si@QD@Si NPs) and had higher quantum yield than that of Si@QD@Si NPs. These results imply that Si@D-QD@Si NPs can be applied in bio-field by enabling highly sensitive detection. |
