Search/Browse Tech
Synthesis of Uniform Magnetic Nanoparticles
Summary
Highly uniform magnetic nanoparticles are highly desirable for numerous applications including medical imaging, chemical manufacturing, and development of drugs in the pharmaceutical industry. Currently, achieving nanoparticles with a small size range has been one of the biggest challenges with most techniques relying on controlling the chemical reaction kinetics. Because reaction kinetics are extremely sensitive to temperature and mass, reaction reproducibility becomes exceedingly difficult. Besides this, particles produced with this method still often have a large size range, making them unsuitable for many applications which require a high level of accuracy (i.e. a narrow size distribution).
Description
Sandia has developed a novel technique for controlling the size of magnetic nanoparticles that does not rely on conventional kinetic control of the reaction. This technology relies on particle agglomeration and precipitation from solution at a certain particle size. The nanoparticle size is totally dependent upon the size of the surfactant used and/or the reaction temperature. Nanoparticle growth is halted by magnetic agglomeration, as agglomerated particles are unavailable to undergo further reaction. Because of this, this method can be tailored to fit almost any application which requires uniform nanoparticles.
Benefits
- Highly reproducible reactions: Surfactant size, not reaction kinetics, limit particle size
- Extremely small size range: Particles are agglomerated and precipitated upon reaching critical size
- Continuous Process Reactor: Particles precipitate upon reaching critical size
Applications and Industries
- Chemical Manufacturing
- Health Care Industry
- Pharmaceutical Industry
Portfolio
Materials, Chemistry, & Nanosc
Bioscience
Downloads
- Market Sheet (608 KB)
Intellectual Property
Title | ID Number |
Patent Number |
Date |
---|---|---|---|
Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles | 11088.0 | 7,972,410 | 07/05/2011
Issued |