PrecisionMRX® Nanoparticles

The highest quality iron oxide magnetite (Fe3O4) nanoparticles commercially available.

Superparamagnetic iron oxide nanoparticles that are, quite simply, super.

Branded as PrecisionMRX® nanoparticles because their size are precisely controlled during production resulting in high magnetic relaxivity, making them ideal for biomedical applications.

How it Works

PrecisionMRX® nanoparticles are extensively characterized by small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) to ensure the nanoparticle cores have a uniformly spherical morphology and are consistent in size with narrow dispersity, resulting in minimum batch-to-batch variability.

Particles from other suppliers typically have poor control over size and shape making them less reliable and consistent for the demands of many applications.


Saturation magnetization of PrecisionMRX nanoparticles is twice as great as conventional nanoparticles.

At low fields, PrecisionMRX iron oxide nanoparticles magnetization greatly surpasses conventional nanoparticles.

High Magnetic Susceptibility

PrecisionMRX® nanoparticles have been developed for magnetic relaxometry and other demanding biomedical applications where the magnet susceptibility of the nanoparticle can be instrumental.

The saturation magnetization of PrecisionMRX® nanoparticles is typically twice as great as conventional iron oxide particles, even in an applied low or weak magnetic field.

PrecisionMRX® nanoparticles can provide excellent contrast even at 1.5T.

By using different MRI sequences, clear information on anatomy (T1-weighted), nanoparticle location (T2-weighted) and magnetic susceptibility (T2*) can be achieved.

Lot-to-Lot Consistency

Imagion Biosystems thermal decomposition manufacturing process allows precise control over size, shape, and magnetic properties of PrecisionMRX® nanoparticles. The manufacturing process is robust and produces high-quality magnetite core nanoparticles with minimal batch-to-batch variability, as seen here in nanoparticle images from three different batches:
PrecisionMRX Nanoparticles
PrecisionMRX Nanoparticles
PrecisionMRX Nanoparticles
MagSense Technology Applications

SPIONS are ideal for various biomedical applications

Explore the many applications of our PrecisionMRX® nanoparticles and find answers to common questions in our FAQs.

World class scientific collaborations & partnerships

Transforming medical imaging for early disease detection

We’re on a mission to make cancer more detectable.