The aqueous phase quantum dot is a nanometer particle having a diameter of 1-10 nm. The nanoparticle can emit fluorescence corresponding to its own energy level under the excitation of external energy, and is a high conversion efficiency luminescent material because of The small particle size, which has superior and unique optical and surface modification properties, has become a newcomer in the field of nanobiophotonics and is 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.

                                     Water soluble CdTe quantum dots

 Mononuclear water-soluble CdTe quantum dots (carboxy amino modification)

                                                                               Water soluble CdS quantum dots

Water-soluble CdTe/CdS quantum dots Water-soluble CdTe/ZnS quantum dots

Water-soluble CdTe/CdS/ZnS quantum dot water-soluble CdTe/ZnS/CdS quantum dots