Method for transferring nano-particles from oil phase into aqueous phase

A nanoparticle, water phase technology, applied in separation methods, chemical instruments and methods, liquid displacement, etc., can solve the problem of difficult to remove oxidants, achieve excellent solubility and physiological compatibility, uniform size without change , the effect of simple process
CN103127744BActive Publication Date: 2014-12-10INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Publication Date
2014-12-10

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Abstract

The invention provides a method for transferring nano-particles from an oil phase into an aqueous phase. The method includes the steps of mixing nano-particle solution dispersed in the non-polar oil phase with water, a stabilizer and cosurfactant solution, enabling the mixture to be subjected to ultrasonic emulsification and made into oil-in-water microemulsion, carrying out evaporation and drying on the microemulsion in a baking oven to obtain stabilizer-nano-particle composite dry jelly, adding polar solvent capable of dissolving the stabilizer into the dry jelly, slightly shaking so as to enable the dry jelly to be dissolved and dispersed into the solvent, and finally achieving the purpose of dispersion of the nano-particles transferred from the non-polar oil phase to the polar solvent. The method is simple in process, simple, convenient and quick in operation, and capable of effectively transferring the nano-particles dispersed in the oil phase to the aqueous phase.
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Description

Technical field

[0001] The invention belongs to the field of preparation, structural characterization, performance and application research of inorganic functional nanocomposite materials, and specifically relates to a method for transferring oil phase nanoparticles to water phase. Background technique

[0002] Using the surface effect, volume effect, and optical or magnetic properties of nanoparticles, combined with the unique biological functions of biomolecules, they can be widely used in biology, medicine and other fields, such as drugs and gene carriers, nuclear magnetic resonance medical imaging and Cell separation.

[0003] Magnetic nanoparticles are widely used in the field of biomedicine, but the requirements for magnetic nanoparticles are relatively high. Nanoparticles synthesized in the water phase often have defects in crystal structure or morphology. Nanoparticle materials prepared by hydrothermal synthesis and thermal decomposition have the advantages of high crysta...

Claims

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