More information on Bichromal Janus Particles:

Named after two-faced Roman god who looks to both the future and the past, Janus particles are microscopic particles composed of two different regions. The two sides can vary in color, optical properties, surface tension, electrostatic charge, magnetic response, conductivity and others. This superior functionality is achieved with proprietary and patented process that allows extremely precise coating on one hemisphere without affecting the other.

Optically anisotropic spheres with magnetic half-shells have numerous applications in diagnostics, medical research, microscopy and biotechnology, as well as electronics, due to their ability to orient themselves in response to electromagnetic field and show a visual response. This is achieved by making spheres both bipolar and bichromal, with dipole precisely aligned with two differently colored hemispheres. As the spheres align themselves, the viewer will observe the color of one hemisphere, while the other hemisphere will be hidden from view, providing an obvious strong visible indication of the presence of the field or other stimuli. In alternating electromagnetic field, these microspheres have been proven to spin at hundreds of times per second.

The spheres were originally developed for very high tolerance electronic digital displays where functionalized microspheres are used to create an image that appears to the viewer. To achieve high resolution in display applications it is critical that every single sphere responds to electromagnetic field in the same way at the same time and aligns precisely with the other spheres. It is also critical that there are no color gradients in the display.

Now dual-functionalized microspheres, also called Janus particles, are available to scientists and engineers to revolutionize products in other industries. Imagine the possibilities.

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