| 초록 |
The last few decades, lanthanide-doped upconversion nanoparticles (UCNPs), which can emit visible light under near-infrared irradiation, are regarded as a new generation of nanoprobes due to their unique optical properties such as improved signal-to-noise ratio, narrow emission bandwidth, high resistance to photobleaching and zero autofluorescence. Because of these characteristics, UCNP-based systems are receiving great attention in many fields such as multiplexed bioimaging, biodetection, display, other optical technologies. In this study, UCNPs with various colors were synthesized by controlling feed composition. Their physicochemical and photoluminescence properties were investigated. The surface modification of UCNPs for biosensing was also conducted. |
