| 초록 |
Upconversion nanoparticles (UCNPs) have been a major topic of research in the biomedical field due to their excellent light emission properties including large anti-Stokes shifts for considerable separation of the upconversion luminescence (UCL) from the excitation, narrow emission bandwidths for easily multiplex imaging, improved signal-to-noise ratio. Following this, UCNPs have attracted increasing attention in analytical application such as bio-imaging, bio-detection and multiplexed analysis. Moreover, inexpensive and compact laser diodes are efficient for the excitation of UCNPs. 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. |
