With the development of nanotechnology, scientists have successfully prepared functional nanoparticles with specific electrical, magnetic, optical, thermal, biological and chemical performance. These multi-functional nanoparticles have significant meaning in the areas of biological, medical, electrical, chemical as well as materials. Especially, fluorescent quantum dots and magnetic nanoparticles attract attentions of large numbers of scientists due to their unique fluorescent and magnetic properties. However, with the further development of science and technology, materials with single function cannot meet the demands for people. Therefore, the composite materials with magnetic and fluorescent performance come into our sight. This paper is focused on the discussion of the preparation and application of the composite nanoparticles with magnetic and fluorescent properties. |