Technical Notes

More Magnetic Power from MagSense

MagSense particle features the strongest magnetic moment in the market. The exceptional magnetic power comes from the 90% magnetic content inside the particle. In magnetic separation, It allows the particles to be easily separated from viscous solutions. In diagnostics, the particle gives strong and clear magnetic signal, which can increase the detection sensitivity.


Frequently Asked Questions

  1. Does the particle have a polystyrene core?
    There is no polymer core inside the particle. Unlike most particles in the market, which use polymer core as the size template, MagSense particles are prepared by direct assembly of magnetic nanoparticles. The removal of polymer core gives the particles an extremely high magnetic loading.
  2. How can I sterilize the particle?
    The particles can be sterilized by rinsing briefly with 75% ethanol. The particles can also be autoclaved at 120C for 20min. No particle aggregation is observed after autoclave. However, oxidization of the magnetic material can happen.
  3. What is the range of pH the particles can tolerate?
    The particles can be used at pH 2-10. The particles may show aggregation in salt solution at high or low pH. The aggregation is reversible when the pH is brought back to neutral.
 
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