| abstract |
The invention discloses an organic fluorescent silicon quantum dot and a preparation method and application thereof, wherein the organic fluorescent silicon quantum dot is obtained by reacting quinine sulfate and a silanization reagent in a molar ratio of 1:2-2: 1. The organic fluorescent silicon quantum dot prepared by a one-step hydrothermal method is a brand new nano fluorescent material, shows stronger fluorescence and good water dispersibility, shows good fluorescence spectrum performance, and has good biocompatibility, stable photobleaching resistance and silicon nano fluorescence optical regulation; meanwhile, the preparation method is simple and convenient, has wide raw material sources and low cost, and is suitable for industrial production and application. The organic fluorescent silicon quantum dots prepared by the invention can be used as fluorescent markers to be applied to cell imaging and multicolor cell imaging based on various excellent characteristics, and can be used for preparing fluorescent probes. |