Due to its small particle size (1-20 nm), quantum dots have unique properties such as optical, electronic and surface modification. They have become a newcomer in the field of nanobiophotonics and are widely used in the field of biomarkers. High-quality quantum dot solutions have the following characteristics: a wide range of sizes, a narrow size distribution, good stability, and high fluorescence. Due to its small size and large surface area, quantum dots are highly susceptible to the surrounding environment. Due to the large specific surface area of quantum dots, there are a large number of surface states on the surface, which affects the fluorescence properties of quantum dots. By coating the organic or inorganic shell layer, the fluorescence properties of the quantum dots can be effectively improved, the quantum efficiency is improved, the photoelectric effect is enhanced, the biocompatibility is improved, and the biological toxicity is reduced.
Single core
Water soluble CdTe quantum dots
Mononuclear water-soluble CdTe quantum dots (carboxy amino modification)
Water soluble CdS quantum dots
Oil-soluble CdTe quantum dots
Oil soluble CdSe quantum dot
Oil soluble CdS quantum dots
Dual-core
Water-soluble CdTe/CdS quantum dots water-soluble CdTe/ZnS quantum dots
Oil-soluble CdSe/ZnS quantum dots
Tricore core
Water-soluble CdTe/CdS/ZnS quantum dots Water-soluble CdTe/ZnS/CdS quantum dots
