One-Step Synthesis of Aligned Nanoparticles With High Purity

Tech ID: 32381 / UC Case 2021-814-0

Patent Status

Patent Pending


Traditional colloidal techniques for synthesis of assembled nanoparticles use multi-step processes involving hazardous solvents and surfactants that require additional purification steps. Therefore, particle production techniques that are scalable and capable of morphological control of aggregate architecture and arrangement are highly desirable.

Brief Description

Profs. Michael Zachariah, Reza Abbaschian and colleagues from the University of California, Riverside and the University of Maryland have developed an electromagnetic levitation technique to generate metal nanoparticles and tune their aggregate structure and morphology. This technique uses magnetic fields to levitate and inductively heat metal pieces, that result in metal evaporation and formation of nanoparticles in the gas phase. This state-of-the-art method is only a single step, is continuous, avoids use of hazardous solvents, and generates high purity metal nanoparticles that are ligand or surfactant free. This technology allows for faster production of aligned nanoparticles at an efficient cost.


Fig 1: Nanoparticle aggregates produced using the UCR method.



  • Metal nanoparticles fabricated with this method may be used in sensors, plasmonics, energetic composites, electronics, catalytic materials, imaging, sensing, photocatalysis, and other electronic applications

Related Materials

Learn About UC TechAlerts - Save Searches and receive new technology matches

Other Information


nanoparticles, alignment, morphology, synthesis, electromagnetic levitation

Categorized As