Bong-Hyun Jun, Do Won Hwang, Heung Su Jung, Jaeho Jang, Hyunsoo Kim, Homan Kang, Taegyu Kang, San Kyeong, Hyeokjae Lee, Dae Hong Jeong, Keon Wook Kang, Hyewon Youn, Dong Soo Lee and Yoon-Sik Lee Quantum Dots: Ultrasensitive, Biocompatible, Quantum-Dot-Embedded Silica Nanoparticles for Bioimaging (Adv. Funct. Mater. 9/2012) Advanced Functional Materials 22
Version of Record online: 2 MAY 2012 | DOI: 10.1002/adfm.201290054
On page 1843, Dong Soo Lee, Yoon-Sik Lee, and co-workers investigate very bright quantum dot (QD)-based probes for effective bioimaging. Silica-coated, QD-embedded silica nanoparticles (Si@QDs@Si NPs) containing QDs composed of CdSe@ZnS (core-shell) are prepared to compare the structure-based advantages with single QDs having similar quantum yields. The excellence of Si@QDs@Si NPs is illustrated by significantly enhanced fluorescence signals. The more advanced version of QDs-based silica nanoparticles containing multishell QDs is prepared without significant loss of quantum yield during surface modification.
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