Multifunctional fluorescent, magnetic Nano material and preparation method
A nanomaterial and fluorescent nanotechnology, applied in the field of fluorescent magnetic multifunctional nanomaterials and their preparation, can solve the problems of being easy to be photobleached, restricting the application of fluorescence methods, and narrow excitation spectrum
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[0034] specific implementation
[0035] The following examples illustrate the specific implementation of the present invention, but the content of the present invention is not limited to the examples given.
[0036] An example of how to make it is as follows:
[0037] 1. Use the method of soap-free emulsion polymerization to prepare styrene / acrylamide copolymerized microspheres with uniform size and excellent appearance. The particle size is generally 50nm-2um, and the particle size can be controlled from 100nm-200nm by experimental conditions.
[0038] 2. Use the method described in our invention patent application document No. 02139152.1 to synthesize high-quality fluorescent nanometer quantum dots (e.g, CdSe / ZnS,) with a controlled particle size of 4nm-8nm. The synthesis process is safe, non-toxic and low in cost.
[0039] 3. Synthesize magnetic nanoparticles (e.g, γ-Fe 2 o 3 , Fe 3 o 4 ), with an average particle size of 8 nm.
[0040] 4. Prepare a chloroform / n-buta...
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