Upconversion Nanoparticles (UPCN)

These are specialized nanoparticles that absorb low-energy light (typically near-infrared) and emit higher-energy light (visible or UV). This property enables their use in biosensors, cellular imaging, fluorescent labeling, and analytical applications.

• Advantages: High photostability, low phototoxicity, and the ability to support multicolor and multifunctional applications.
• Surface Modification: Chemical groups or biomolecules can be conjugated, allowing the development of target-specific sensors or probes.
• Applications: Long-term biological tracking, fluorescent labeling, optical sensor systems, and research projects.