Optical Properties Of ZnS Based Fluorescence Resonance Energy Transfer System

Fluorescence resonance energy transfer(FRET) is a physical phenomenon about energy transfer between two different fluorescent materials. It can be widely used for medical diagnosis, environmental testing, food safety monitoring and other fields. Zn S has various characters, such as luminescence properties can be adjusted by doping behavior, the surface is easy to decorate and its rich material source as well as the environmental safety. The FRET system construction and application have a unique advantage. It does not contain heavy metals of Zn S nano material administered with fluorescent dyes around this paper. FRET system construction has carried out researches, the main contents are as following:(1)Briefly describing the basic principle of fluorescence resonance energy transfer and the conditions and the application in the field of biological molecular analysis. Stating the nature of Zn S nano material administered in fluorescence resonance energy transfer and the research progresses are summarized.(2)To the modified sol, it was prepared by a variety of Zn S donor administered material and it was also found cysteamine modified Zn S nanocrystals luminescence wavelength of 450 nm, administered with green fluorescent dye FITC excitation wavelength matching. In addition, it further proves the basic condition of fluorescence resonance energy transfer.(3)Introducing the cation adhesive, Zn S: Cu- Rh B fluorescence resonance energy transfer system.Implementation under 351 nm inspire Zn S:Cu nanomaterials at 498 nm 590 nm light to Rh B fluorescence molecules, and increasing the concentration of receptor molecules, which can effectively improve the transfer efficiency.