The study focuses on creating and characterizing water-dispersible Eu/Mn co-doped ZnSe@ZnS quantum dots (QDs) for biomedical cellular imaging applications, highlighting their interaction with cells and their optical properties.
The QDs demonstrated high biocompatibility (over 85% cell viability) and a unique ability to emit tunable fluorescence colors, which can be controlled by adjusting the concentration of dopants.
The QDs were mostly taken up by macrophage cells via macropinocytosis, maintaining effective internalization for up to 24 hours, making them promising candidates for advanced fluorescent bionanoprobes in biomedicine.
Luminescent inorganic materials are used in several technological applications such as light-emitting displays, white LEDs for illumination, bioimaging, and photodynamic therapy. Usually, inorganic phosphors (e.g.